Date   

Re: M57 and Bright Moon

Jason Tackett
 

Well done! I really like the contrast in this image.

Jason

--- In backbayastro@..., "uwicb" <ian@...> wrote:

Here's a shot of M57 done with a 7nm Ha filter last night under nearly a full moon. Central star doesn't show up I guess because the star is basically exhausted and just a hot dwarf. Did I mention I love narrowband!

Cheers

Ian

http://ianstewart.zenfolio.com/p59901274/h68e0461d#h68e0461d


Re: Rays of Tycho

preciousmyprecious
 

Best I can do are the maria. Especially last night. 
 
Carpe Noctem
Bill McLean


From: nranderson_deepskyobserver
To: backbayastro@...
Sent: Saturday, June 22, 2013 8:31 PM
Subject: [backbayastro] Rays of Tycho

 
Months ago I had read that the lunar rays of Tycho can actually be seen with the unaided eye by observers with acute eyesight. Has anyone in the club attempted/done this before? It sounds like a fun long-term challenge and we have a supermoon this month. Anyone have any other naked eye lunar feats they've accomplished?

-Nick Anderson




Rays of Tycho

Nick Anderson
 

Months ago I had read that the lunar rays of Tycho can actually be seen with the unaided eye by observers with acute eyesight. Has anyone in the club attempted/done this before? It sounds like a fun long-term challenge and we have a supermoon this month. Anyone have any other naked eye lunar feats they've accomplished?

-Nick Anderson


Re: Annual BBAA Picnic in JULY

Jim Tallman
 

And Kent...I'd prefer your first choice :)


Jim

--- In backbayastro@..., "UsnRet2001" <jctallman@...> wrote:

All,
The annual BBAA Picnic is 21 July, which is a Sunday and will be at the large pavilion at Northwest River Park. I'd like to get a good head could of who will be coming so we can plan for the food we need to pick-up. Please visit the BBAA Group Database area and sign up. Here is the link to get there. Make sure you copy the entire link.

http://tech.groups.yahoo.com/group/backbayastro/database?method=reportRows&tbl=870

You can also get to the database via the yahoo group by selecting "Database" at the left and open the link for the 2013 Picnic.

Please sign up even if you are not sure.


Thanks

Jim Tallman


Annual BBAA Picnic in JULY

Jim Tallman
 

All,
The annual BBAA Picnic is 21 July, which is a Sunday and will be at the large pavilion at Northwest River Park. I'd like to get a good head could of who will be coming so we can plan for the food we need to pick-up. Please visit the BBAA Group Database area and sign up. Here is the link to get there. Make sure you copy the entire link.

http://tech.groups.yahoo.com/group/backbayastro/database?method=reportRows&tbl=870

You can also get to the database via the yahoo group by selecting "Database" at the left and open the link for the 2013 Picnic.

Please sign up even if you are not sure.


Thanks

Jim Tallman


M57 and Bright Moon

uwicb
 

Here's a shot of M57 done with a 7nm Ha filter last night under nearly a full moon. Central star doesn't show up I guess because the star is basically exhausted and just a hot dwarf. Did I mention I love narrowband!

Cheers

Ian

http://ianstewart.zenfolio.com/p59901274/h68e0461d#h68e0461d


Re: Swiffer my primary mirror

Dr Bruce
 

Has anyone brought up Ted Forte's instructions in the Database yet.
Has worked for me from day one as Mother Nature messed it up soon after I took ownership of the 12.5" Dob in Chiefland, FL.

Mirrors over 10" are hard to handle and immersion can be hazardous. But laying it level after first rinsing it off with 'a garden hose' while vertical and then laying flat on towels, pooling your distilled water with one drop of Dawn in one liter on the upright mirror surface - keep wet and repeat, repeat...........Drag clean wet cotton balls thru areas of tough spots (do not push - drag wet cotton while soap solution is pooled), almost floating the cotton ball across (NO rubbing permitted). The elevate mirror tilted on towels at about 30-45 degrees and rinse with fresh distilled water repeatedly (get two liters). Brick patio and side of house with thick bath towels works great. Watch out for the sun's reflection!!! Wick remaining droplets off with clean J&J medical grade cotton balls - never use same side twice. Reserve 90+% medical grade propanol or ethanol for severe spots and wet a cotton ball with the alcohol and let it sit on dirty spot for a few minutes. Rinse again and let air dry with occasional cotton ball wicking.

Yes its all scary................but it works! I have washed three times in 6 years.

Now you can breath!

Doc Bruce


nice graphic comparing

preciousmyprecious
 

this full moon to normal

 
Carpe Noctem
Bill McLean


Re: Swiffer my primary mirror

gerlach.mark
 

With all due respect to the knowledge and experience of Mark Ost:
If you are sure it is just dust, air is fine.
If there is a chance that the stuff on the mirror is pollen, I would strongly recommend against compressed air. Pollen is sticky and often has tiny sharp points. The effect would be like sandblasting your mirror.

/&#92;&#92;ark 2

--- In backbayastro@..., Mark Ost <jimcoble2000@...> wrote:

The best way is with compressed air. Now if it requires cleaning that is something different. Not hard but if ti comes to that I can tell you how to do it more or less easily.




________________________________
From: LeighAnne <lalagoe@...>
To: backbayastro@...
Sent: Thursday, June 20, 2013 11:08 AM
Subject: [backbayastro] Swiffer my primary mirror



 
Is there a quick and easy way to dust off the primary mirror?

The instructions for my Orion XT8 classic dob tell me to remove the primary mirror and soak it soapy water and alcohol and wipe clean with cotton balls. Sounds like too opportunities to screw up, scratch and/or drop my mirror. I'm scared.

Isn't there a Swiffer for primary mirrors? HA!


Re: Swiffer my primary mirror

George Reynolds
 

Yeah, salt-laden air and sand from the oceanfront are bad on optics, and should be cleaned off.

George
 

George Reynolds

"Solar System Ambassador" for South Hampton Roads, Virginia
Back Bay Amateur Astronomers (BBAA) 
http://www.backbayastro.org


 


From: nranderson_deepskyobserver
To: backbayastro@...
Sent: Thursday, June 20, 2013 7:08 PM
Subject: [backbayastro] Re: Swiffer my primary mirror

 
Oh gee...now that's a somewhat controversial question in the amateur astronomer community! Around the time when I joined the BBAA this was one of my first questions to this forum, and I learned that there are incredibly varied opinions. While your Orion telescope manual specifically recommends cleaning your mirror once a year, it's nothing absolute. In my case, my first 3 months observing the Messier objects primarily from Sandbridge took an immense toll on my primary. In that short amount of time (although it's true I was averaging around an obsessive 15 observations a month that summer) the saltwater in the air over time managed to form a film on the primary, which fogged up the optics. Since then I've been a lot more careful about my scope and I think I've only cleaned the mirror again once. Dust alone is not something to be worried about! You should be fine for a while.

-Nick Anderson

--- In backbayastro@..., "LeighAnne" wrote:
>
> Is there a quick and easy way to dust off the primary mirror?
>
> The instructions for my Orion XT8 classic dob tell me to remove the primary mirror and soak it soapy water and alcohol and wipe clean with cotton balls. Sounds like too opportunities to screw up, scratch and/or drop my mirror. I'm scared.
>
> Isn't there a Swiffer for primary mirrors? HA!
>




Re: Swiffer my primary mirror

Roy Ehmke
 

Actually, I'm looking forward to a mirror and optics cleaning workshop. This could be really useful.
 
~Roy Ehmke


Re: Swiffer my primary mirror

jimcoble2000
 

you won't see any difference unless it is really cruddy


From: LeighAnne <lalagoe@...>
To: backbayastro@...
Sent: Thursday, June 20, 2013 12:59 PM
Subject: [backbayastro] Re: Swiffer my primary mirror

 
I've had my telescope for less than 3 years. Today, I noticed some specks of dust/dirt on it and got very concerned that I'd have to take it apart. I haven't noticed a difference in optics at all (but haven't been using it for the past several months either).
Good to know I can just let it go for a while. I do keep the cover on it at all times. I guess it's not as bad as I originally thought it was.

I'm glad I asked first before taking it apart.

Thanks everyone! :)




Re: Swiffer my primary mirror

jimcoble2000
 

I soft camel hair brush will also work fine after the air


From: LeighAnne <lalagoe@...>
To: backbayastro@...
Sent: Thursday, June 20, 2013 11:08 AM
Subject: [backbayastro] Swiffer my primary mirror

 
Is there a quick and easy way to dust off the primary mirror?

The instructions for my Orion XT8 classic dob tell me to remove the primary mirror and soak it soapy water and alcohol and wipe clean with cotton balls. Sounds like too opportunities to screw up, scratch and/or drop my mirror. I'm scared.

Isn't there a Swiffer for primary mirrors? HA!




Re: Swiffer my primary mirror

jimcoble2000
 

The best way is with compressed air. Now if it requires cleaning that is something different. Not hard but if ti comes to that I can tell you how to do it more or less easily.



From: LeighAnne
To: backbayastro@...
Sent: Thursday, June 20, 2013 11:08 AM
Subject: [backbayastro] Swiffer my primary mirror

 
Is there a quick and easy way to dust off the primary mirror?

The instructions for my Orion XT8 classic dob tell me to remove the primary mirror and soak it soapy water and alcohol and wipe clean with cotton balls. Sounds like too opportunities to screw up, scratch and/or drop my mirror. I'm scared.

Isn't there a Swiffer for primary mirrors? HA!




Re: Swiffer my primary mirror

Nick Anderson
 

Oh gee...now that's a somewhat controversial question in the amateur astronomer community! Around the time when I joined the BBAA this was one of my first questions to this forum, and I learned that there are incredibly varied opinions. While your Orion telescope manual specifically recommends cleaning your mirror once a year, it's nothing absolute. In my case, my first 3 months observing the Messier objects primarily from Sandbridge took an immense toll on my primary. In that short amount of time (although it's true I was averaging around an obsessive 15 observations a month that summer) the saltwater in the air over time managed to form a film on the primary, which fogged up the optics. Since then I've been a lot more careful about my scope and I think I've only cleaned the mirror again once. Dust alone is not something to be worried about! You should be fine for a while.

-Nick Anderson

--- In backbayastro@..., "LeighAnne" <lalagoe@...> wrote:

Is there a quick and easy way to dust off the primary mirror?

The instructions for my Orion XT8 classic dob tell me to remove the primary mirror and soak it soapy water and alcohol and wipe clean with cotton balls. Sounds like too opportunities to screw up, scratch and/or drop my mirror. I'm scared.

Isn't there a Swiffer for primary mirrors? HA!


Re: Swiffer my primary mirror

George Reynolds
 

Paul wrote:  "maybe we could even turn it into a workshop where everyone could learn the proper way to clean a mirror."  

That sounds like a good idea!  If we can schedule such a workshop, I'll volunteer to bring my scope for the demo.  (That's "demo" for "demonstration", not "demolition", as they use the term on HGTV.)

George

George Reynolds

"Solar System Ambassador" for South Hampton Roads, Virginia
Back Bay Amateur Astronomers (BBAA) 
http://www.backbayastro.org


 


From: Paul Tartabini
To: backbayastro@...
Sent: Thursday, June 20, 2013 12:31 PM
Subject: Re: [backbayastro] Swiffer my primary mirror

 
LeighAnne,

How long have you had your XT8 and how dirty is it?  I have had mine for 4 yrs and have not cleaned it.  You'll find varied opinions on cleaning, with some cleaning each year and others, like myself, avoiding cleaning as long as possible. One thing you will find agreement on is that it is easy to scratch your mirror and cleaning should be done carefully with a minimal amount of touching, wiping, etc.

If the only thing that concerns you is a little dust, then I would ignore it, as it will not affect your views. Many folks get concerned about dust on the mirror, especially if you shine a red light down your tube at night. No mirror looks good if you do that. Seriously,  I've been told an freshly cleaned scope will look dusty as can be if you shine a red light down a tube at  night and examine the mirror.

Finally, if you do think you need to clean it, I would try to arrange to have an *experienced* club member either talk with your beforehand, or even help you do it yourself.  If the latter, maybe we could even turn it into a workshop where everyone could learn the proper way to clean a mirror.

Good luck!

- Paul



On Thu, Jun 20, 2013 at 11:08 AM, LeighAnne <lalagoe@...> wrote:
 
Is there a quick and easy way to dust off the primary mirror?

The instructions for my Orion XT8 classic dob tell me to remove the primary mirror and soak it soapy water and alcohol and wipe clean with cotton balls. Sounds like too opportunities to screw up, scratch and/or drop my mirror. I'm scared.

Isn't there a Swiffer for primary mirrors? HA!





Re: Swiffer my primary mirror

George Reynolds
 

That's right, Leigh Anne.  There is no need to clean your mirror routinely.  Only if it gets so dirty or spotted that it is interfering with the views at night should you attempt to wash it.  Bill is right.  I have had my 10-inch Dob for 8 or 9 years and have yet to clean the mirror.  One of these days I'll get around to it.

George
 

George Reynolds

"Solar System Ambassador" for South Hampton Roads, Virginia
Back Bay Amateur Astronomers (BBAA) 
http://www.backbayastro.org


 


From: William McLean
To: "backbayastro@..."
Sent: Thursday, June 20, 2013 12:32 PM
Subject: Re: [backbayastro] Swiffer my primary mirror

 
That is good!-Isn't there a Swiffer for primary mirrors? HA! 

Unless it's real bad I can't tell a clean from a dirty by use. George has the dirtiest mirror in the club and I defy anyone to see a difference, on the same object- side by side with a clean mirror scope.
 
Carpe Noctem
Bill McLean

From: LeighAnne
To: backbayastro@...
Sent: Thursday, June 20, 2013 11:08 AM
Subject: [backbayastro] Swiffer my primary mirror

 
Is there a quick and easy way to dust off the primary mirror?

The instructions for my Orion XT8 classic dob tell me to remove the primary mirror and soak it soapy water and alcohol and wipe clean with cotton balls. Sounds like too opportunities to screw up, scratch and/or drop my mirror. I'm scared.

Isn't there a Swiffer for primary mirrors? HA!






Boardwalk Astronomy

Kent Blackwell
 

I will be there between 7-7:30 PM Thursday.

Kent Blackwell


Re: BoardWalk, 6/18/2013, 5:30 pm

gerlach.mark
 

I will be there. Save me a parking space.
Fair Warning: I am bringing the twins!
We will have only their 6" scope; not enough room in the Camry for mine, too. If I could get a parking spot on th BW for my van, I could set up 2 or 3 scopes.

/&#92;&#92;2

--- In backbayastro@..., "Stargazer" <vbstargazer@...> wrote:

I will be there by 6pm
Dale

--- In backbayastro@..., colvinclan5@ wrote:


We are going to try to come.
Cheryl


-----Original Message-----
From: George Reynolds <pathfinder027@>
To: backbayastro <backbayastro@...>
Sent: Tue, Jun 18, 2013 3:01 pm
Subject: Re: [backbayastro] BoardWalk, 6/18/2013, 5:30 pm







Aah! I have to work Thursday until 8pm. Clear skies, everyone. Maybe I can come late.


George





George Reynolds

"Solar System Ambassador" for South Hampton Roads, Virginia
Back Bay Amateur Astronomers (BBAA)
http://www.backbayastro.org












From: Charles JAGOW <chuck@>
To: backbayastro@...
Sent: Tuesday, June 18, 2013 12:37 PM
Subject: Re: [backbayastro] BoardWalk, 6/18/2013, 5:30 pm






BOARDWALK ASTRONOMY FOR THIS EVENING HAS BEEN RESCHEDULED TO THURSDAY EVENING!

THURSDAY IS OUR RAIN DATE ANYWAY! SEE YOU ALL THEN!

v/r
Chuck Jagow
NCRR #1495 & Newsletter Editor
VP Back Bay Amateur Astronomers
Rott'n Paws Observatory
N36:46:23.281 W076:13:31.512

-----Original Message-----
From: backbayastro@... [mailto:backbayastro@...]
Sent: Tuesday, June 18, 2013 12:30 PM
To: backbayastro@...
Subject: [backbayastro] BoardWalk, 6/18/2013, 5:30 pm

Reminder from: backbayastro Yahoo! Group
http://groups.yahoo.com/group/backbayastro/cal

BoardWalk
Tuesday June 18, 2013
5:30 pm - 11:00 pm
(GMT+00:00)

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Re: Swiffer my primary mirror

preciousmyprecious
 

Jim, I think we have the beginnings of a dirty mirror contest or AL program. 
 
Carpe Noctem
Bill McLean


From: Jim Tallman
To: backbayastro@...
Sent: Thursday, June 20, 2013 1:37 PM
Subject: RE: [backbayastro] Swiffer my primary mirror

 
Actually I think Courtney is the winner for dirtiest mirror.
 
Jim
 
From: backbayastro@... [mailto:backbayastro@...] On Behalf Of William McLean
Sent: Thursday, June 20, 2013 12:32 PM
To: backbayastro@...
Subject: Re: [backbayastro] Swiffer my primary mirror
 
 
That is good!-Isn't there a Swiffer for primary mirrors? HA! 
 
Unless it's real bad I can't tell a clean from a dirty by use. George has the dirtiest mirror in the club and I defy anyone to see a difference, on the same object- side by side with a clean mirror scope.
 
Carpe Noctem
Bill McLean

From: LeighAnne <lalagoe@...>
To: backbayastro@...
Sent: Thursday, June 20, 2013 11:08 AM
Subject: [backbayastro] Swiffer my primary mirror
 
 
Is there a quick and easy way to dust off the primary mirror?

The instructions for my Orion XT8 classic dob tell me to remove the primary mirror and soak it soapy water and alcohol and wipe clean with cotton balls. Sounds like too opportunities to screw up, scratch and/or drop my mirror. I'm scared.

Isn't there a Swiffer for primary mirrors? HA!
 


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