Date
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Saturday night comet report
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jimcoble2000
Most of the general charts do not go very deep into some of the catalogs such as Trumpler or Collinder. Many of these clusters are either difficult or very diffuse and may not stand out easily against the background sky. They can contain diamonds though sometimes. Star Clusters by Archinal and Hynes may be the best reference for open and globular clusters. It has Collinder 70 listed though no pictures. This book may be out of print, as so many books are now. It is not an "at the telescope guide" but a detailed cross reference catalog of clusters. More a desk reference and research tool. Sky Tools has the boundaries on screen but does not list it on the screen as Collinder 70. It is in their search tool.
On Monday, January 30, 2023 at 01:46:14 AM EST, George Reynolds via groups.io <pathfinder027@...> wrote:
Collinder 70, the grouping of stars around Orion's belt. Of all my star charts, Pocket Sky Atlas (both standard and jumbo eds.), Sky Atlas 2000.0, Cambridge Star Atlas, The Observer's Sky Atlas, and Uranometria Vol 2, the ONLY chart/list that shows Cr 70 is Objects in the Heavens by Peter Birren! George George Reynolds "Solar System Ambassador" for South Hampton Roads, Virginia Back Bay Amateur Astronomers (BBAA) http://www.backbayastro.org
On Sunday, January 29, 2023 at 06:02:59 PM EST, jimcoble2000 via groups.io <jimcoble2000@...> wrote:
BTW thanks to John Raymond for pointing out that cluster I spoke about is Collinder 70, an OB association/open cluster that makes up the Belt of Orion and all the surrounding bright stars. I remember somewhere reading it was an actual open cluster. It really only becomes apparent in binoculars.
On Sunday, January 29, 2023 at 11:21:05 AM EST, preciousmyprecious via groups.io <preciousmyprecious@...> wrote:
Plus one for binoz Carpe Noctem Bill McLean
On Sunday, January 29, 2023 at 10:55:08 AM EST, jimcoble2000 via groups.io <jimcoble2000@...> wrote:
I was in fairly dark skies in Poquoson Saturday night with my 20x80 binoculars, my 10x30 Cannon image stabilized binos and my Vixen nerd constellation nerd binoculars 2x but huge field. The comet has considerably brightened since I first viewed it a couple of months ago. Here are the results: Naked eye: Could not do it from reasonably dark skies. I did not adapt too long due to circumstance. I think it is right on the edge. 20x80 ED big binoculars: One of my favorite comet tools. Easily seen above Kochab. The coma is quite extended and bright now. Core visible. Tail detectable though not detailed. Really quite a bit larger and brighter now. Easy find. Cannon 10x30 IS binoculars: Easy to see even in 30mm aperture. The IS feature helps a lot. This is my mini portable observatory. Tail not detectable but coma was easy if a bit dimmer than the larger binoculars. Vixen Nerd Constellation binoculars: These are fun in dark skies. They give a huge field with little magnification. It took a bit of work to detect the comet and at first I thought they could not do it but with patience and waiting until the end of the session I was able to spot the dim blur of the comet. I believe Kent had to try as couple times too from his location. Still these are fun binoculars, make good night terrestrial light amplifiers, can be used at the opera, are solid built and finally make you look like a Nerd if seen with them. They are discontinued by Vixen, a company unafraid to try new things. Addendum: The 20x80s are a lot of fun to scan the sky with. I should use them more. With the wide field you can see things that escape telescopes. I saw most of M-42 wrapping around an extended region of Orion. Also did you you the middle star in the belt, Alnilam, is surrounded by a huge number of extended very bright stars. I wonder if these are not in some catalog of open clusters. You can't appreciate the sight in a telescope due to the limited field in most scopes. Only binoculars can do this. |
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George Reynolds
Collinder 70, the grouping of stars around Orion's belt. Of all my star charts, Pocket Sky Atlas (both standard and jumbo eds.), Sky Atlas 2000.0, Cambridge Star Atlas, The Observer's Sky Atlas, and Uranometria Vol 2, the ONLY chart/list that shows Cr 70 is Objects in the Heavens by Peter Birren! George George Reynolds "Solar System Ambassador" for South Hampton Roads, Virginia Back Bay Amateur Astronomers (BBAA) http://www.backbayastro.org
On Sunday, January 29, 2023 at 06:02:59 PM EST, jimcoble2000 via groups.io <jimcoble2000@...> wrote:
BTW thanks to John Raymond for pointing out that cluster I spoke about is Collinder 70, an OB association/open cluster that makes up the Belt of Orion and all the surrounding bright stars. I remember somewhere reading it was an actual open cluster. It really only becomes apparent in binoculars.
On Sunday, January 29, 2023 at 11:21:05 AM EST, preciousmyprecious via groups.io <preciousmyprecious@...> wrote:
Plus one for binoz Carpe Noctem Bill McLean
On Sunday, January 29, 2023 at 10:55:08 AM EST, jimcoble2000 via groups.io <jimcoble2000@...> wrote:
I was in fairly dark skies in Poquoson Saturday night with my 20x80 binoculars, my 10x30 Cannon image stabilized binos and my Vixen nerd constellation nerd binoculars 2x but huge field. The comet has considerably brightened since I first viewed it a couple of months ago. Here are the results: Naked eye: Could not do it from reasonably dark skies. I did not adapt too long due to circumstance. I think it is right on the edge. 20x80 ED big binoculars: One of my favorite comet tools. Easily seen above Kochab. The coma is quite extended and bright now. Core visible. Tail detectable though not detailed. Really quite a bit larger and brighter now. Easy find. Cannon 10x30 IS binoculars: Easy to see even in 30mm aperture. The IS feature helps a lot. This is my mini portable observatory. Tail not detectable but coma was easy if a bit dimmer than the larger binoculars. Vixen Nerd Constellation binoculars: These are fun in dark skies. They give a huge field with little magnification. It took a bit of work to detect the comet and at first I thought they could not do it but with patience and waiting until the end of the session I was able to spot the dim blur of the comet. I believe Kent had to try as couple times too from his location. Still these are fun binoculars, make good night terrestrial light amplifiers, can be used at the opera, are solid built and finally make you look like a Nerd if seen with them. They are discontinued by Vixen, a company unafraid to try new things. Addendum: The 20x80s are a lot of fun to scan the sky with. I should use them more. With the wide field you can see things that escape telescopes. I saw most of M-42 wrapping around an extended region of Orion. Also did you you the middle star in the belt, Alnilam, is surrounded by a huge number of extended very bright stars. I wonder if these are not in some catalog of open clusters. You can't appreciate the sight in a telescope due to the limited field in most scopes. Only binoculars can do this. |
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jimcoble2000
BTW thanks to John Raymond for pointing out that cluster I spoke about is Collinder 70, an OB association/open cluster that makes up the Belt of Orion and all the surrounding bright stars. I remember somewhere reading it was an actual open cluster. It really only becomes apparent in binoculars.
On Sunday, January 29, 2023 at 11:21:05 AM EST, preciousmyprecious via groups.io <preciousmyprecious@...> wrote:
Plus one for binoz Carpe Noctem Bill McLean
On Sunday, January 29, 2023 at 10:55:08 AM EST, jimcoble2000 via groups.io <jimcoble2000@...> wrote:
I was in fairly dark skies in Poquoson Saturday night with my 20x80 binoculars, my 10x30 Cannon image stabilized binos and my Vixen nerd constellation nerd binoculars 2x but huge field. The comet has considerably brightened since I first viewed it a couple of months ago. Here are the results: Naked eye: Could not do it from reasonably dark skies. I did not adapt too long due to circumstance. I think it is right on the edge. 20x80 ED big binoculars: One of my favorite comet tools. Easily seen above Kochab. The coma is quite extended and bright now. Core visible. Tail detectable though not detailed. Really quite a bit larger and brighter now. Easy find. Cannon 10x30 IS binoculars: Easy to see even in 30mm aperture. The IS feature helps a lot. This is my mini portable observatory. Tail not detectable but coma was easy if a bit dimmer than the larger binoculars. Vixen Nerd Constellation binoculars: These are fun in dark skies. They give a huge field with little magnification. It took a bit of work to detect the comet and at first I thought they could not do it but with patience and waiting until the end of the session I was able to spot the dim blur of the comet. I believe Kent had to try as couple times too from his location. Still these are fun binoculars, make good night terrestrial light amplifiers, can be used at the opera, are solid built and finally make you look like a Nerd if seen with them. They are discontinued by Vixen, a company unafraid to try new things. Addendum: The 20x80s are a lot of fun to scan the sky with. I should use them more. With the wide field you can see things that escape telescopes. I saw most of M-42 wrapping around an extended region of Orion. Also did you you the middle star in the belt, Alnilam, is surrounded by a huge number of extended very bright stars. I wonder if these are not in some catalog of open clusters. You can't appreciate the sight in a telescope due to the limited field in most scopes. Only binoculars can do this. |
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jimcoble2000
Jeez I need to keyboard better or start to review more closely before posting!
On Sunday, January 29, 2023 at 11:21:05 AM EST, preciousmyprecious via groups.io <preciousmyprecious@...> wrote:
Plus one for binoz Carpe Noctem Bill McLean
On Sunday, January 29, 2023 at 10:55:08 AM EST, jimcoble2000 via groups.io <jimcoble2000@...> wrote:
I was in fairly dark skies in Poquoson Saturday night with my 20x80 binoculars, my 10x30 Cannon image stabilized binos and my Vixen nerd constellation nerd binoculars 2x but huge field. The comet has considerably brightened since I first viewed it a couple of months ago. Here are the results: Naked eye: Could not do it from reasonably dark skies. I did not adapt too long due to circumstance. I think it is right on the edge. 20x80 ED big binoculars: One of my favorite comet tools. Easily seen above Kochab. The coma is quite extended and bright now. Core visible. Tail detectable though not detailed. Really quite a bit larger and brighter now. Easy find. Cannon 10x30 IS binoculars: Easy to see even in 30mm aperture. The IS feature helps a lot. This is my mini portable observatory. Tail not detectable but coma was easy if a bit dimmer than the larger binoculars. Vixen Nerd Constellation binoculars: These are fun in dark skies. They give a huge field with little magnification. It took a bit of work to detect the comet and at first I thought they could not do it but with patience and waiting until the end of the session I was able to spot the dim blur of the comet. I believe Kent had to try as couple times too from his location. Still these are fun binoculars, make good night terrestrial light amplifiers, can be used at the opera, are solid built and finally make you look like a Nerd if seen with them. They are discontinued by Vixen, a company unafraid to try new things. Addendum: The 20x80s are a lot of fun to scan the sky with. I should use them more. With the wide field you can see things that escape telescopes. I saw most of M-42 wrapping around an extended region of Orion. Also did you you the middle star in the belt, Alnilam, is surrounded by a huge number of extended very bright stars. I wonder if these are not in some catalog of open clusters. You can't appreciate the sight in a telescope due to the limited field in most scopes. Only binoculars can do this. |
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preciousmyprecious
Plus one for binoz Carpe Noctem Bill McLean
On Sunday, January 29, 2023 at 10:55:08 AM EST, jimcoble2000 via groups.io <jimcoble2000@...> wrote:
I was in fairly dark skies in Poquoson Saturday night with my 20x80 binoculars, my 10x30 Cannon image stabilized binos and my Vixen nerd constellation nerd binoculars 2x but huge field. The comet has considerably brightened since I first viewed it a couple of months ago. Here are the results: Naked eye: Could not do it from reasonably dark skies. I did not adapt too long due to circumstance. I think it is right on the edge. 20x80 ED big binoculars: One of my favorite comet tools. Easily seen above Kochab. The coma is quite extended and bright now. Core visible. Tail detectable though not detailed. Really quite a bit larger and brighter now. Easy find. Cannon 10x30 IS binoculars: Easy to see even in 30mm aperture. The IS feature helps a lot. This is my mini portable observatory. Tail not detectable but coma was easy if a bit dimmer than the larger binoculars. Vixen Nerd Constellation binoculars: These are fun in dark skies. They give a huge field with little magnification. It took a bit of work to detect the comet and at first I thought they could not do it but with patience and waiting until the end of the session I was able to spot the dim blur of the comet. I believe Kent had to try as couple times too from his location. Still these are fun binoculars, make good night terrestrial light amplifiers, can be used at the opera, are solid built and finally make you look like a Nerd if seen with them. They are discontinued by Vixen, a company unafraid to try new things. Addendum: The 20x80s are a lot of fun to scan the sky with. I should use them more. With the wide field you can see things that escape telescopes. I saw most of M-42 wrapping around an extended region of Orion. Also did you you the middle star in the belt, Alnilam, is surrounded by a huge number of extended very bright stars. I wonder if these are not in some catalog of open clusters. You can't appreciate the sight in a telescope due to the limited field in most scopes. Only binoculars can do this. |
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jimcoble2000
I was in fairly dark skies in Poquoson Saturday night with my 20x80 binoculars, my 10x30 Cannon image stabilized binos and my Vixen nerd constellation nerd binoculars 2x but huge field. The comet has considerably brightened since I first viewed it a couple of months ago. Here are the results: Naked eye: Could not do it from reasonably dark skies. I did not adapt too long due to circumstance. I think it is right on the edge. 20x80 ED big binoculars: One of my favorite comet tools. Easily seen above Kochab. The coma is quite extended and bright now. Core visible. Tail detectable though not detailed. Really quite a bit larger and brighter now. Easy find. Cannon 10x30 IS binoculars: Easy to see even in 30mm aperture. The IS feature helps a lot. This is my mini portable observatory. Tail not detectable but coma was easy if a bit dimmer than the larger binoculars. Vixen Nerd Constellation binoculars: These are fun in dark skies. They give a huge field with little magnification. It took a bit of work to detect the comet and at first I thought they could not do it but with patience and waiting until the end of the session I was able to spot the dim blur of the comet. I believe Kent had to try as couple times too from his location. Still these are fun binoculars, make good night terrestrial light amplifiers, can be used at the opera, are solid built and finally make you look like a Nerd if seen with them. They are discontinued by Vixen, a company unafraid to try new things. Addendum: The 20x80s are a lot of fun to scan the sky with. I should use them more. With the wide field you can see things that escape telescopes. I saw most of M-42 wrapping around an extended region of Orion. Also did you you the middle star in the belt, Alnilam, is surrounded by a huge number of extended very bright stars. I wonder if these are not in some catalog of open clusters. You can't appreciate the sight in a telescope due to the limited field in most scopes. Only binoculars can do this. |
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