C10NGT, Z8, 150 Rumak, XLT 150, C6, C5, SW5 Newt, 4.5 Ball, C102GT, C90, ST80, A70LF; 15x70, 25x100; Burgess BV; Paracorr II; T6 2.5, XO 2.58/5.1, Ethos-SX 3.7, Delos 4.5, TV Plossl 7.4-26, BCO 10, Hutech HC 12.5, Sterling 12.5-25, ES100 14, CZJ H 16/25, CZJ O 16, M5k UWA 24, T5 31, Ultrascopic 35, Titan-II 40; Bino Pairs M5k UWA 6.7, Baader Zoom 8-24, M5k SWA 24, TV Plossl 26, RKE 28.7; Zooms NZ 2-4, NZ 3-6, Leica ASPH 8.9-17.8, Baader 8-24; Baader Zoom Barlow, VIP Barlow
Clear skies, Erik
Visual astronomer since 1978.
Matthias Wirth 16" f/5
Takahashi FS-102 NSV on EM-10
Celestron 1983 C5
Zeiss, TeleVue and Celestron eyepieces
Nikon 18x70 IF-WP Zeiss Victory FL 7x42 Zeiss Victory FL 10x32
Scopes: CPC8, TV85+Voyager Binos: 40-70mm, GT80mm~45deg
"We live in the sky, not under it." John Tyndall
Quote:''... the primary star which shines 10,000 times brighter.Taras
Many scopes and bits, but my Z12 is the workhorse.
Quote:How have others seen the Pup's color? Sirius B is supposed to be a white dwarf. To me, it looked white with a definite tinge of light-blue. This was in all three telescopes and with all the eyepieces that would split it from Sirius.Mike
Scopes: 10" dob, 13" dob, 4" refractor
"Only gold is money, and nothing else. " - John Pierpont Morgan
David W. Knisely . . . . . . "If you aren't having fun in this hobby, you aren't doing it right." Hyde Memorial Observatory http://www.hydeobservatory.info Prairie Astronomy Club http://www.prairieastronomyclub.org
Quote:The Pup star appeared to have a slightly light-blue tinge to my eyes. It also seemed to have this cast in the other two Dobs.
“I am the only person to ever ace a 1951 USAF resolution test. My 'to observe' list says 'done'. I do not use charts or atlases when I starhop; men do not use maps. One of my sketches won an SBIG deep sky imaging contest. I am the life of star parties I have never attended. I never say anything looks like a faint fuzzy - not even a faint fuzzy. Pilots aim green laser pointers at me. Don Pensack proofreads my CN forum posts.” - The Most Interesting Astronomer in the Universe
Quote:I think the Pup is pretty easy with a 3" to 5" aperture at just 70-100x. I don't think high magnification is needed if you have an extremely high contrast, well-baffled scope. I plan on trying tonight with a 60mm.
A man is a small thing, and the night is very large and full of wonders.
Quote:...So for me, double stars are an afterthought. ...Now, trying to see the faintest galaxies or nebulae with my telescope, that's something different...
Used acronyms: NEML=Naked Eye Magnitude Limit, SQM=Sky Quality Meter, TML=Telescope Magnitude Limit, CO=Central Obstruction, delta_m=difference in magnitudes between double star components, RoT=Rule of Thumb, pD_mm=proposed D_mm for resolving a binary (ident with earlier used pA=proposed Aperture), D_mm=Diameter (of scope) in mm, UCAC4=USNO CCD Astrograph Catalog 4th edition