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nytecam
Post Laureate
Reged: 08/20/05
Posts: 4760
Loc: London UK
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anyone looking at these  Last night did red dwarfs eg Barnard's Star in Oph [highest proper motion] and Van Biesbreok's Star in Aql [lowest luminocity star @ Abs mag +19.3] and rare white dwarf binary G206-17/18 in Her. These were trawled from Burnham's Cel Hk. 
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Nytecam 51N 0.1W
Meade 30cm LX200+ETX-70+DS-2090+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs
Starlight SXVF_M9/Lodestar/Canon 300D DSLR/Fuji E550
My observatory build-ETX-70 imaging-spectro page
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Dave Mitsky
Postmaster
Reged: 04/08/02
Posts: 6116
Loc: Pennsylvania, USA
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I've been following the proper motion of Barnard's Star for many years.
One of the components of Keid or 40 Eridani (Omicron 2 Eridani), a notable triple star system, is a white dwarf that is among the easiest white dwarfs observable with amateur instruments. The primary star is a 4.4 magnitude yellow dwarf. The white dwarf, 40 Eridani B, shines at magnitude 9.5 and can be seen with a small aperture. Larger telescopes will resolve the third component, an 11.2 magnitude red dwarf.
http://www.astro.uiuc.edu/~kaler/sow/keid.html
Dave Mitsky
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Chance favors the prepared mind.
De gustibus non est disputandum.
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nytecam
Post Laureate
Reged: 08/20/05
Posts: 4760
Loc: London UK
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Hi DaveQuote:
I've been following the proper motion of Barnard's Star for many years.
Likewise too - I've started a Meade forum thread with my recent results but I've failed to identify the diffuse object [circled] on the frame which looks like a galaxy in DDS to me - if not I'll claim Nytecam 1 
Quote:
One of the components of 40 Eridani (Omicron 2 Eridani), a notable triple star system, is a white dwarf that is among the easiest white dwarfs observable with amateur instruments. Dave Mitsky
I recorded this system last year - nice one
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Nytecam 51N 0.1W
Meade 30cm LX200+ETX-70+DS-2090+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs
Starlight SXVF_M9/Lodestar/Canon 300D DSLR/Fuji E550
My observatory build-ETX-70 imaging-spectro page
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starbux
sage
Reged: 02/08/06
Posts: 216
Loc: Silicon Valley, CA
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No white dwarfs yet for me, I will try 40 Eridani later in the year. I DID however see Struve 2398 recently -- a pair of 8th mag red dwarfs 11 ly away. These are my first red dwarves.
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Bill Weir
scholastic sledgehammer
Reged: 06/01/04
Posts: 879
Loc: Metchosin (Victoria), Canada
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No, but a member of my club did a tracking of the proper motion of another star with rapid proper motion, 61 Cygni (Bessel's star). It also happens to be a multiple star system to boot.
http://rascvic.zenfolio.com/p959642173/?photo=h2974C59D#695518621
He's actually compiling a nice image collection of multiple star systems.
Bill
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6'' Orion SkyQuest
12.5'' f/5 Custom Truss Dob
William Optics 80mm ZenithStar II ED Doublet
f/5 25" newtonian on a giant GEM, any time I want
Observing sessions grand total for 2007, 171.
So far in 2008, 108
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nytecam
Post Laureate
Reged: 08/20/05
Posts: 4760
Loc: London UK
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Thanks Starbux and Bill - here's my shot [from my CN Meade forum thread] of rare white dwarf duo G206-17/18 in Hercules and is worth a look. Not pretty but challenging and only one step removed from city-sized neutron star and then a blackhole singularity - I'll not be drawn into an observation of the latter 
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Nytecam 51N 0.1W
Meade 30cm LX200+ETX-70+DS-2090+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs
Starlight SXVF_M9/Lodestar/Canon 300D DSLR/Fuji E550
My observatory build-ETX-70 imaging-spectro page
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nytecam
Post Laureate
Reged: 08/20/05
Posts: 4760
Loc: London UK
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Quote:
I've failed to identify the diffuse object [circled] on the frame which looks like a galaxy in DDS to me - if not I'll claim Nytecam 1
perhaps not - I've identified this as mag 15.6 galaxy PGC 61178 as here.
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Nytecam 51N 0.1W
Meade 30cm LX200+ETX-70+DS-2090+C8+Ha+CaK PSTs SBIG SGS+homebuilt spectrographs
Starlight SXVF_M9/Lodestar/Canon 300D DSLR/Fuji E550
My observatory build-ETX-70 imaging-spectro page
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