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Re: Paramount ME help
Dan Crowson
Bernard,
My method, which probably isn’t standard, is to just move it – I think the manual will say tics = x amount of turn. At that point, I wipe the model and run a short one – again, I think the manual might mention how many but I would think 30-40 would be enough and check again. I would repeat until close enough and then just run a big model. You probably won’t touch it again for years and I suspect you could run a massive one (I can do 700 points in a couple hours even using the all-sky solve).
My method is with the MKS5000. I doubt there’s a lot of difference if yours has the MKS4000. I just find it doesn’t make a lot of sense to try to fit existing models when we’re talking a few hours of images on a bad night.
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From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Bernard Miller
Sent: Tuesday, October 26, 2021 12:29 PM To: DarkSkyNewMexico@groups.io Subject: [DarkSkyNewMexico] Paramount ME help
Hi,
I need to polar align my Paramount ME tomorrow when I am at DSNM. The T-Point polar alignment tells me I have to rotate west 6.4 clicks. I have an older ME mount that does not have “clicks”. Does anyone have any idea how far this is on the older mounts? Also, after I adjust the polar alignment, do I have to run T-Point again? If so, how many points is enough to get good polar alignment data?
Thanks,
Bernard
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Re: Paramount ME help
Yizhou Zhang
Bernard,
You can do an “Accurate Polar Alignment” routine inside TPoint Add-on, which asks you to slew to a suitable star; the mount will offset based on your PA error, and you just need to loop the exposure and manually bring the star back to the center using Alt/Az knobs. No tick involved. A video here is a good instruction: https://www.youtube.com/watch?v=71GI7EO3IxM
After APA the SkyX assume you bring the stars back perfectly to the center, and update the model accordingly. You don’t have to re-build the model, but I typically do that anyway… You can add a few “re-calibration” point, I think 30-50 stars are good for that already.
All from memory, haven’t operate on a Paramount for long time 😊
Yizhou
From: Bernard Miller
Sent: Tuesday, October 26, 2021 10:29 AM To: DarkSkyNewMexico@groups.io Subject: [DarkSkyNewMexico] Paramount ME help
Hi,
I need to polar align my Paramount ME tomorrow when I am at DSNM. The T-Point polar alignment tells me I have to rotate west 6.4 clicks. I have an older ME mount that does not have “clicks”. Does anyone have any idea how far this is on the older mounts? Also, after I adjust the polar alignment, do I have to run T-Point again? If so, how many points is enough to get good polar alignment data?
Thanks,
Bernard
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Paramount ME help
Bernard Miller
Hi,
I need to polar align my Paramount ME tomorrow when I am at DSNM. The T-Point polar alignment tells me I have to rotate west 6.4 clicks. I have an older ME mount that does not have “clicks”. Does anyone have any idea how far this is on the older mounts? Also, after I adjust the polar alignment, do I have to run T-Point again? If so, how many points is enough to get good polar alignment data?
Thanks,
Bernard
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Re: Comet c2021 A1 Leonard
Comet C/2021 A1 Leonard will cruise between the Whale (NGC 4631) and Crowbar (NGC 4656) Galaxies the morning of 24 November. The tail might split them on 25 November (Thanksgiving morning). This looks like a perfect field for about a 1m focal length telescope. The comet will be well up in the sky for two to three hours. However, the waning gibbous moon may be an issue.
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Re: Sharpless 301
Bernard Miller
Nice color Dan. It has a vague resemblance to the Trifid.
Bernard
From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Saturday, October 23, 2021 11:50 AM To: 'Dan Crowson' <dcrowson@...> Subject: [DarkSkyNewMexico] Sharpless 301
Sharpless 301 (Bran 6 and 7, Ced 93, Gum 5, LBN 1044, RCW 6 and others) is a HII region located approximately 18,917 light-years away in Canis Major.
Ha – 24x1800s – 720 minutes – binned 1x1 RGB – 8x300s – 40 minutes each – binned 2x2
840 minutes total exposure – 14 hours
Imaged over nine nights in 2020 and 2021 at Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.
HaRGB - https://www.flickr.com/photos/dcrowson/51622707241/sizes/l/
I captured a much wider, broadband image that can be seen here - https://www.flickr.com/photos/dcrowson/51330670873.
Dan ----
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Re: NGC 2146
Bernard Miller
Beautiful Dan. Nice detail int eh dust lanes. I will have to put this one on my list.
Bernard
From: DarkSkyNewMexico@groups.io On Behalf Of Dan Crowson
Sent: Saturday, October 23, 2021 2:53 PM To: 'Dan Crowson' <dcrowson@...> Subject: [DarkSkyNewMexico] NGC 2146
NGC 2146 (UGC 3429, PGC 18797, VV 1156 and many others) is a starburst galaxy (https://en.wikipedia.org/wiki/Starburst_galaxy) located approximately 87 million light-years away in Camelopardalis.
Luminance – 27x600s – 270 minutes – binned 1x1 RGB – 14:12:16x300s – 70:60:80 minutes each – binned 2x2
480 minutes total exposure – 8 hours
Imaged November 10th, 11th, 12th and 14th, 2020 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.
LRGB - https://www.flickr.com/photos/dcrowson/51623503823/sizes/l/
I captured somewhat recent SN 2018zd in this image - https://www.flickr.com/photos/dcrowson/40347697645/sizes/l/.
Dan ----
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Arp 259 - Hickson 31
Dan Crowson
Arp 259 (NGC 1741) appears to be in the center of a train wreck. Part of Arp’s ‘Galaxies (not classifiable as S or E) - Irregular clumps’ class, it is located approximately 186 million light-years away in Eridanus.
Hickson 31 consists of NGC 1741 above and another six or seven galaxies around it. All appear to be between 181 and 186 million light-years away by redshift.
IC 399 is the ball galaxy located below the above. Some sources include it as the seventh or ‘G’ galaxy in HCG 31.
Luminance – 24x600s – 240 minutes – binned 1x1 RGB – 8x300s – 40 minutes each – binned 2x2
360 minutes total exposure – 6 hours
Imaged January 26th, September 21st and 23rd and November 13th and 14th, 2020 Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.
LRGB - https://www.flickr.com/photos/dcrowson/51626420118/sizes/l/
Dan ----
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Re: NGC 2146
Dan, Those dust lanes look like blood vessels! I like the color balance. Brian
From: DarkSkyNewMexico@groups.io <DarkSkyNewMexico@groups.io> On Behalf Of Dan Crowson
Sent: Saturday, October 23, 2021 5:53 PM To: 'Dan Crowson' <dcrowson@...> Subject: [DarkSkyNewMexico] NGC 2146
NGC 2146 (UGC 3429, PGC 18797, VV 1156 and many others) is a starburst galaxy (https://en.wikipedia.org/wiki/Starburst_galaxy) located approximately 87 million light-years away in Camelopardalis.
Luminance – 27x600s – 270 minutes – binned 1x1 RGB – 14:12:16x300s – 70:60:80 minutes each – binned 2x2
480 minutes total exposure – 8 hours
Imaged November 10th, 11th, 12th and 14th, 2020 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.
LRGB - https://www.flickr.com/photos/dcrowson/51623503823/sizes/l/
I captured somewhat recent SN 2018zd in this image - https://www.flickr.com/photos/dcrowson/40347697645/sizes/l/.
Dan ----
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NGC 2146
Dan Crowson
NGC 2146 (UGC 3429, PGC 18797, VV 1156 and many others) is a starburst galaxy (https://en.wikipedia.org/wiki/Starburst_galaxy) located approximately 87 million light-years away in Camelopardalis.
Luminance – 27x600s – 270 minutes – binned 1x1 RGB – 14:12:16x300s – 70:60:80 minutes each – binned 2x2
480 minutes total exposure – 8 hours
Imaged November 10th, 11th, 12th and 14th, 2020 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.
LRGB - https://www.flickr.com/photos/dcrowson/51623503823/sizes/l/
I captured somewhat recent SN 2018zd in this image - https://www.flickr.com/photos/dcrowson/40347697645/sizes/l/.
Dan ----
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Re: Sharpless 301
Gregg Ruppel
Nice...you captured a lot of the background nebulosity. Thanks for
sharing.
toggle quoted messageShow quoted text
Clear skies, Gregg Visit my astronomy & astrophotography site http://www.greggsastronomy.com/ On 10/23/2021 11:50 AM, Dan Crowson
wrote:
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Sharpless 301
Dan Crowson
Sharpless 301 (Bran 6 and 7, Ced 93, Gum 5, LBN 1044, RCW 6 and others) is a HII region located approximately 18,917 light-years away in Canis Major.
Ha – 24x1800s – 720 minutes – binned 1x1 RGB – 8x300s – 40 minutes each – binned 2x2
840 minutes total exposure – 14 hours
Imaged over nine nights in 2020 and 2021 at Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.
HaRGB - https://www.flickr.com/photos/dcrowson/51622707241/sizes/l/
I captured a much wider, broadband image that can be seen here - https://www.flickr.com/photos/dcrowson/51330670873.
Dan ----
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An 8 and a 4
Gregg Ruppel
Hi all:
Czernik 8 and King 4 are small open clusters on the Cassiopeia/Perseus border: http://www.greggsastronomy.com/IMAGES/cz8_king4-RGB.jpg Annotated: http://www.greggsastronomy.com/IMAGES/cz8_king4-RGB_annotated.jpg RGB, 3.5 hours total exposure during a nearly full moon, from Dark Sky New Mexico. -- Clear skies, Gregg Visit my astronomy & astrophotography site http://www.greggsastronomy.com/
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Re: NGC 7538 in SHO narrowband
Gregg Ruppel
Great detail in the NB. Thanks for sharing.
toggle quoted messageShow quoted text
Gregg www.greggsastronomy.com
On Oct 18, 2021, at 6:17 PM, Bernard Miller <bgmiller011@...> wrote:
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NGC 7538 in SHO narrowband
Bernard Miller
Hi,
This is an image of NGC 7538. It is an emission nebula about 9,100 light years away in the constellation Cepheus. It is an active star forming region with the largest known protostar measuring about 300 times the size of our solar system. This nebula is often overlooked due its proximity to the more famous Bubble Nebula. This image was captured and processed in SHO narrowband with RGB stars blended in.
Thanks for looking and comments and suggestions welcomed.
http://www.azstarman.net/CDK/NGC7538_SHO.htm Thanks, Bernard
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Re: NGC 7538
Dan Crowson
Bernard,
Really nice. This is the small one next to the bubble that is very bright if I remember right.
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From: DarkSkyNewMexico@groups.io [mailto:DarkSkyNewMexico@groups.io] On Behalf Of Bernard Miller
Sent: Sunday, October 17, 2021 6:02 PM To: DarkSkyNewMexico@groups.io Subject: [DarkSkyNewMexico] NGC 7538
Hi,
This is an image of NGC 7538. It is an emission nebula about 9,100 light years away in the constellation Cepheus. It is an active star forming region with the largest known protostar measuring about 300 times the size of our solar system. This nebula is often overlooked due its proximity to the more famous Bubble Nebula.
Thanks for looking and comments and suggestions welcomed.
http://www.azstarman.net/CDK/NGC7538.htm Thanks, Bernard
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Re: NGC 7538
Gregg Ruppel
Nicely processed, Bernard. Your colors match what I got in a wide field view a few years back:
toggle quoted messageShow quoted text
http://greggsastronomy.com/IMAGES/ngc7538-HaRGB.jpg Gregg www.greggsastronomy.com
On Oct 17, 2021, at 4:01 PM, Bernard Miller <bgmiller011@...> wrote:
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Re: Comet c2021 A1 Leonard
Bernard Miller
Gregg,
toggle quoted messageShow quoted text
I love your comet images. To think this is how Messier got started. Bernard
-----Original Message-----
From: DarkSkyNewMexico@groups.io On Behalf Of Gregg Ruppel Sent: Sunday, October 17, 2021 11:00 AM To: undisclosed-recipients: Subject: [DarkSkyNewMexico] Comet c2021 A1 Leonard Hi all: Comet c2021 A1 Leonard rises just before dawn low in the northeast at about magnitude 12. It is expected to brighten as it passes us at 0.2 AU in December, and may become a naked eye comet: http://www.greggsastronomy.com/IMAGES/c2021-A1-Leonard-LRGB_101721.jpg Inverted, cropped: http://www.greggsastronomy.com/IMAGES/c2021-A1-Leonard_101721inv.jpg LRGB, 40 minutes total exposure from Dark Sky New Mexico. -- Clear skies, Gregg Visit my astronomy & astrophotography site http://www.greggsastronomy.com/ -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
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NGC 7538
Bernard Miller
Hi,
This is an image of NGC 7538. It is an emission nebula about 9,100 light years away in the constellation Cepheus. It is an active star forming region with the largest known protostar measuring about 300 times the size of our solar system. This nebula is often overlooked due its proximity to the more famous Bubble Nebula.
Thanks for looking and comments and suggestions welcomed.
http://www.azstarman.net/CDK/NGC7538.htm Thanks, Bernard
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NGC 7423 - Berkeley 57
Dan Crowson
NGC 7423 (Berkeley 57) is a trumpler (https://en.wikipedia.org/wiki/Trumpler_classification) class II 3 m open cluster located approximately 13,500 light-years away in Cepheus.
Luminance – 24x300s – binned 1x1 – 120 minutes RGB – 8x180s – 24 minutes each – binned 2x2
182 minutes total exposure – 3 hours 2 minutes
Imaged October 8th, 10th and 12th, 2021 from Dark Sky New Mexico at Rancho Hidalgo (Animas, New Mexico) with a SBIG STF-8300M on an Astro-Tech AT12RCT at f/8 2432mm.
LRGB - https://www.flickr.com/photos/dcrowson/51599970066/sizes/l/
Dan ----
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Re: NGC 973
Gregg Ruppel
Lots of interesting stuff in this field. Thanks for sharing.
toggle quoted messageShow quoted text
Gregg www.greggsastronomy.com
On Oct 17, 2021, at 9:49 AM, Dan Crowson <dcrowson@...> wrote:
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