| Tim Leese | ||||
| Star:
Sh 105 (27 + 27b Hydrae)
Date & Time: 1st March 2002 ( 2100 UT ) Seeing: 7 <1-10 Seeing Scale (10 best)> Location of site: Northwich, Cheshire. UK. (53° 15' N -2º 33' W). Site classification: Suburban Sky darkness: 4.2 ( UMi ) <Limiting magnitude> Conditions: Clear sky, Moon, past full, just rising. Telescope: 80mm f/5 rich field refractor. Mounts: EQ5 Eyepieces: 18mm Orthoscopic, CMG. Magnification: X22, X32(CMG) |
I found a nice wide double,
ideal for binoculars, but tonight using my 80mm refractor. A splendid view
using X22 where I observed a deep yellow star with a brilliant blue companion.
I visually estimated the PA of the blue star and found it to be lower than
that published on the 33 list. Using the CMG( X32 ) and Tom's drift method,
an average of 5 transits gave a PA of 212deg for the blue companion. The
18mm orthoscopic gave a very nice view with plenty of stars in the same
fov.
Ambience: Exceptionally clear sky after all the rain. I hope that a squelching sound from underfoot is mud and not from our shelled garden friends.
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| Bob Hogeveen | ||||
| Star:
Sh 105 (27 + 27b Hydrae)
Date & Time: 1st March 2002 (22:15 UT) Seeing: 4 <1-10 Seeing Scale (10 best)> Location of site: Annen, The Netherlands 53ºN, 6ºE Site classification: Village backyard Sky darkness: 5 (before moonrise) <Limiting magnitude> Transparency: 8 <1 worst - 10 best> Temperature: 1º C Telescope: Celestron C11, Guan Sheng 80mm f/6 Eyepieces: Ultima 30mm, Celestron 25mm plossl Magnification: C11: 93x. GS80: 19x |
A very wide double, nice
target for bino's. The primary is deep-yellow, the secondary yellow. With
the C11 can be found a third companion. This one seems to belong to B and
Skymap gives this BC-pair the name DOO 49. The distance B-C is 9.3", C
is mag. 10.9 and sits @ PA 198.
The rating for this pair
is 3 for both scopes.
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| Patrick Thompson | ||||
| Star:
Sh 105 (27 + 27b Hydrae)
Date & Time: 7th March 2002, 22:40 UT Seeing: 8 <1-10 Seeing Scale (10 best)> Location of site: West Wickham, Kent, UK 51°23' N, 0°0'E Site classification: Suburban garden Sky darkness: 4.5 <Limiting magnitude> Moon: None Transparency: 8 <1 worst - 10 best> Temperature: º C Telescope: 8" Meade LX-90 SCT f/10 Eyepieces: 40mm and 26mm Meade Super Plossl, 13.8mm Meade SWA, 8.8mm Meade UWA Magnification: 50x, 80x, 145x, 230x Rating: 2 <1(best) - 5(worst)> |
Very wide, yellow and white
pair.
At first, only five stars
in total were visible in the fov @80x as the
There was no sign of the
third component (9" S of secondary) and higher
I am still a bit confused
because Kepple & Sanner has the tertiary at mag
Assuming I wasn't just imagining
the third component, I would rate this a 2.
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| Steve Bodin | ||||
| Star:
Sh 105 (27 + 27b Hydrae)
Date & Time: 11 March 2002, 11pm to midnight Seeing: 4-5 <1-10 Seeing Scale (10 best)> Location of site: Silverdale Wa, USA 47N, 123W Site classification: Suburban Sky darkness: 5.5 <Limiting magnitude> Transparency: <1 worst - 10 best> Telescope: 4 inch Meade 107D on ETX mount Eyepieces: 17mm , 8mm Magnification: 60x, 125x |
Wide and easy at 60x, primary
a yellow white color with a blue secondary. Easy to find, near Alpha Hydra.
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| Kevin Barker | ||||
| Star:
Sh 105 (27 + 27b Hydrae)
Date & Time: 24th March, 2002 Seeing: 8-9 <1-10 Seeing Scale (10 best)> Transparency: 8 <1-10 Seeing Scale (10 best)> Location of site: Auckland, New Zealand. Site classification: Suburban Backyard Sky darkness: <Limiting magnitude> Moon: Gibbous moon in sky. Telescope: Zeiss APQ 100/1000 Mount: Zeiss Ib mount, setting circles. Eyepieces: Zeiss 0.965” orthoscopics, 4, 6, 8 and 12.5 mm, H 40, Zeiss 4 ocular turret. Magnification: 80x |
Very wide and bright after the others. | |||
| Luis Belanzino | ||||
| Star:
Sh 105 (27 + 27b Hydrae)
Date & Time: Wed April 8, 2002, 21h to 23h UT Seeing: 7 <1-10 Seeing Scale (10 best)> Transparency: 7 <1-10 Seeing Scale (10 best)> Location of site: Göteborg, Sweden 57°43' N, 11°58' E Site classification: Suburban area moderate light pollution Sky darkness: 4-5 <Limiting magnitude> Temperature: 2-3º C Moon: None Telescope: Russian TAL-1 equatorial reflector 110mm f/7.3 Eyepieces: 25mm and 12.5mm TAL Super Plossl, 15mm TAL Kellner, 3x TAL Barlow Magnification: 32x, 54x, 97x, 161x, 193x |
WDS (AB) 229,1"
PA 211º
After looking for faint pairs, this super-wide double is a refresh. Yet visible in the finder, the components are too far away to look like a double. Easy to find near Alphard, the only way to appreciate this pair is with my lowest power: 32x. But the color contrast is nice: the main star is yellow, and the secondary looks like purple- bluish to me. Ranting 2. According to the WDS, the companion is a double itself, with a 11m star at 9,3"-PA 199º which I could not detect.
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