Brett's Carbon Star Hunt - January 2021

Brett's Monthly Carbon Star Hunt Challenge

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KingNothing13
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Brett's Carbon Star Hunt - January 2021

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Post by KingNothing13 »

Hello all! Figured I'd get an early start on this so that I do not have to worry about it on New Year's Day! I hope everyone reading has had a good holiday season, and is staying safe. Hopefully 2021 will be better!

Welcome to the first "Carbon Star Hunt of 2021"! If you need some information on Carbon Stars, you can check that out here. Personally, I love the little buggers!

You may be asking yourself, "Brett, how do you come up with your list of stars for the month?" To which my answer is "Every month, I go into SkySafari, and forward to the 15th of the month at midnight. I make note of the constellations around zenith at that time, and then consult the Astronomy League's 100 Carbon Stars list for their Carbon Star award. From there, I note the magnitudes of each, and select 3."

Obviously, this could and likely does lead to Northern Hemisphere bias, as I sit at about 42 degrees North, so I do TRY to get one or two that are south of the celestial equator. I apologize in advance to our Southern Hemisphere folks if I make it a little more difficult for them and you are interested in these.

So on to this month's targets. As always, feel free to report in this sub-forum with a new topic, or a reply to this one Or your regular observation reports. This is not a contest or an award - the only goal is to get out and observe and check out these mostly gorgeous stars. I would really like to get out myself again soon!

V614 Mon - Magnitude range: 7.01 - 7.36 (I bet most people would not be visually able to tell the difference between min and max.)

Data for it found here and the lone observation (way back in March) in the AAVSO database can be found here.

NQ Gem - Magnitude Range 7.4 - 8

Data here and observations here.

R Lep - aka Hind's Crimson Star, Magnitude Range: 5.5 - 11.7. Nice Wiki article about it here. When I saw that, I could not resist adding it to this month's targets. From Sky Safari:
R Leporis, sometimes called Hind's Crimson Star, is a long-period variable star in Lepus, near the constellation's border with Eridanus. It is one of the reddest stars in the sky, easily seen in binoculars at maximum brightness. It was discovered by British astronomer John Hind in 1845, who described it as "a blood drop on the background of the sky."
R Leporis is a long-period pulsating variable. Its magnitude varies from 5.5 to 11.7 with a major period of 427-432 days. Its maximum varies in a secondary cycle of 40 years from magnitude 5.5 to 6.5. R Lep has often been reported as displaying an intense smoky red color, deepest when the star is dimmest.
AAVSO data here and AAVSO Observation reports here. It looks to be towards the brighter end of it's variability right now, so it should be a good time to observe it, but the deep red when dimmest sounds really nice.

So that's it for this month! Clear, dark skies to all!
-- Brett

Scopes:
Primary: Apertura AD10 with ES 82* 18mm (69x), 11mm (114x), & 6.7mm (187x); Nexus II with 8192/716000 Step Encoders
G-n-G: Orion GoScope II 70mm "Travel Scope" with Orion 25mm Kellner (16x), Orion 10mm Kellner (40x)
Celestron SkyMaster 15x70 Binoculars
List Counts: Messier: 65; Herschel 400: 26; Caldwell: 6
Carbon Star Hunt January 2021

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Graeme1858
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Re: Brett's Carbon Star Hunt - January 2021

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Post by Graeme1858 »

We had a clear sky here last Saturday! So amongst other things I managed to capture the January Carbon stars.

When I started NQ Gem was the highest. I found it in Stellarium and sent the coordinates to the NINA Framing page. A quick Plate Solve placed it in the centre of my screen.

NQ Gem.jpg

Next was R Lep

R Lep Hinds.jpg

Finally V614 Mon

V614 Mon Carbon.jpg

This was my first outing this year, it was fun hunting down your carbon stars Brett! Thanks for the challenge.

Regards

Graeme
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KingNothing13
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Re: Brett's Carbon Star Hunt - January 2021

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Post by KingNothing13 »

Nice Graeme! Thanks for sharing the images - they look great! Glad you were able to get out and see them.
-- Brett

Scopes:
Primary: Apertura AD10 with ES 82* 18mm (69x), 11mm (114x), & 6.7mm (187x); Nexus II with 8192/716000 Step Encoders
G-n-G: Orion GoScope II 70mm "Travel Scope" with Orion 25mm Kellner (16x), Orion 10mm Kellner (40x)
Celestron SkyMaster 15x70 Binoculars
List Counts: Messier: 65; Herschel 400: 26; Caldwell: 6
Carbon Star Hunt January 2021

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