Brett's Carbon Star Hunt - May 2021

Brett's Monthly Carbon Star Hunt Challenge

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KingNothing13
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Brett's Carbon Star Hunt - May 2021

#1

Post by KingNothing13 »

Hello all and welcome to the May 2021 Edition of "Brett's Carbon Star Hunt".

My observing time has been nothing since October or so, I think I am in an observing low, it happens. We'll see how things go.

I hope you all are able to get out and observe these - they really are nice stars.

T Lyr - (7.84 - 9.60) - I *believe* this is the first Carbon Star I observed when I was at the Observatory B&B in British Columbia a long while ago now - almost 7 years ago now.

Data can be found here, and observations can be found here.

T Dra - (7.2 - 13.5) - Data is found here, and the observation log can be found here.

TW Oph - (11.6 - 13.8) - This is the more difficult challenge of the month, dimmer than the other targets, hopefully everyone likes the challenge! Data found here and observation log here.


I hope everyone is able to get out and observe!
-- 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 May 2021

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Piet Le Roux
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Re: Brett's Carbon Star Hunt - May 2021

#2

Post by Piet Le Roux »

Thanks brett, and for those, like myself, that knew nothing about carbon stars information can be found here :
https://skyandtelescope.org/observing/o ... bon-stars/
Main Equipment : Tele Vue 27mm Panoptic, 7&13mm Nagler, Big Barlow : 8" Meade LX90ACF with Meade 2.0" Enhanced Diagonal : Camera Fuji XT100
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Re: Brett's Carbon Star Hunt - May 2021

#3

Post by Piet Le Roux »

I think Proxima Centauri qualify as a red dwarf and carbon star ? please correct me if I am wrong. I have been trying to identify it but it is a dim 11 magnitude star among other similar stars.....I think I will give it another try....
Main Equipment : Tele Vue 27mm Panoptic, 7&13mm Nagler, Big Barlow : 8" Meade LX90ACF with Meade 2.0" Enhanced Diagonal : Camera Fuji XT100
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Re: Brett's Carbon Star Hunt - May 2021

#4

Post by KingNothing13 »

Piet Le Roux wrote: Sat May 01, 2021 3:37 pm I think Proxima Centauri qualify as a red dwarf and carbon star ? please correct me if I am wrong. I have been trying to identify it but it is a dim 11 magnitude star among other similar stars.....I think I will give it another try....
Proxima is a Red Dwarf and not a Carbon Star - they are different types of stars.

https://en.wikipedia.org/wiki/Red_dwarf

https://en.wikipedia.org/wiki/Carbon_star

Thanks for checking in!
-- 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 May 2021

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helicon
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Re: Brett's Carbon Star Hunt - May 2021

#5

Post by helicon »

Hopefully will be able to give it a go with this month's objects Brett. Weather permitting.
-Michael
Various scopes, 10" Zhumell Dob f/4.9, ES AR152 f/6.5, AWB 5.1" Onesky newt, Oberwerk 25x100 binos, two eyeballs. Camera: ZWO ASI 120
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Re: Brett's Carbon Star Hunt - May 2021

#6

Post by Piet Le Roux »

I found some Carbon Star lists for the southern and northern hemisphere:https://ozsky.org/resources.asp
I used the info to write a Meade tour of carbon Stars brighter than 7 magnitude for the southern hemisphere:
TITLE "Carbon Stars"
//For southern hemisphere >mag7
AUTO SELECT TEXT "Carbon Stars" "Press 'ENTER' to skip to next item, 'GOTO' to see and 'MODE' for 3s to EXIT"
AUTO SELECT USER 06:54:27 -42d21m56s " NP Pup/HR2591 " ": Spectra class N4.5 : Mag 6.4 : Distance 1400 ly : In Puppis :"
AUTO SELECT USER 10:35:13 -39d33m45s " U Ant/HR4153 " ": Spectra class C5 : Mag 5.5 : Distance 840 ly : In Antlia :"
AUTO SELECT USER 10:11:54 -35d19m29s " AB Ant/HD88539" ": Spectra class C6 : Mag 6.8 : Distance 980 ly : In Antlia :"
AUTO SELECT USER 01:26:58 -32d32m36s " B Scl/HR423 " ": Spectra class C6 : Mag 6.6 : Distance 1500 ly : In Sculptor :"
AUTO SELECT USER 09:51:04 -23d01m02s " Y Hya/HD85405 " ": Spectra class C5 : Mag 6.6 : Distance 1100 ly : In Hydra :"
AUTO SELECT USER 10:51:37 -21d15m00s "V Hya/SAO179278" ": Spectra class C6-7 : Mag 6.6 : Distance 1561 ly : In Hydra :"
AUTO SELECT USER 19:34:19 -16d22m27s "AQ Sgr/HD184283" ": Spectra class C7 : Mag 6.9 : Distance 1822 ly : In Sagittarius:"
AUTO SELECT USER 19:19:10 -15d54m30s " HD180953 " ": Spectra class C6 : Mag 6.9 : Distance 1300 ly : In Sagittarius:"
AUTO SELECT USER 18:50:20 -07d54m27s " S Sgr/HR7089 " ": Spectra class C6 : Mag 6.7 : Distance 1300 ly : In Sagittarius:"
AUTO SELECT USER 05:05:24 +01d10m39s " W Ori/HR1648 " ": Spectra class C5 : Mag 5.8 : Distance 700 ly : In Orion :"
AUTO SELECT USER 23:46:24 +03d29m12s " 19 Psc/TX Psc " ": Spectra class C7 : Mag 5 : Distance 760 ly : In Pisces :"
AUTO SELECT TEXT "The End" "Thanks for taking the tour of 'Carbon Stars' (c)2021 Piet Le Roux "
#END
I will have a look at these at our club meet on Saturday.....weather permitting.
Main Equipment : Tele Vue 27mm Panoptic, 7&13mm Nagler, Big Barlow : 8" Meade LX90ACF with Meade 2.0" Enhanced Diagonal : Camera Fuji XT100
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Re: Brett's Carbon Star Hunt - May 2021

#7

Post by KingNothing13 »

That's great! Please let us know of the results!
-- 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 May 2021

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Piet Le Roux
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Re: Brett's Carbon Star Hunt - May 2021

#8

Post by Piet Le Roux »

So we had our club meet last night at the famous Boyden Observatory outside Bloemfontein and at first the weather was not accommodating but cleared nicely later. This left us with a busy schedule and not much time, covid curfew starts at 24h00 and we still had to get back to the city, the focus constellations were Centaurus and Crux and I found two carbon stars in them that I thought would have potential : Ruby Crucis next to Mimosa in Crux and S Cen/HD107957, I worked them into the program that I had setup as a Meade tour on a LX90, but to be honest they were not spectacular, they were just visible and very little red were visiable. Not a good introduction for any novice but I have not given up, I realise that timing is is important with these obsevations because they are variable stars and it is important to view them on the peak of their cycles. For that I would have to do more research and find out what these dates are. All considered it was a very successful club outing!
Main Equipment : Tele Vue 27mm Panoptic, 7&13mm Nagler, Big Barlow : 8" Meade LX90ACF with Meade 2.0" Enhanced Diagonal : Camera Fuji XT100
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