| Eddy O'connor | ||||
| Star:
RMK 21 (eta Lupi)
Date & Time: April 21st and 22nd 2003 9-10.30 p.m local; UT +10 Seeing: 2 <1-10 Seeing Scale (10 best)>. Transparency: 9 <1-10 Scale (10 best)>. Location of site: Terara, New South Wales, Australia. Long.150.38 ; Lat 34.52S Site classification: Suburban-Rural Conditions: Temp. 16ºC. High humidity Sky darkness: <Limiting magnitude> Telescope: 8" F9 Newtonian Eyepieces: 16mm and 12.5mm Ortho Magnification: 72x, 144x HS Scale: 0 <1-5, 1 best> |
I
have been keeping the best till last. RMK 21 or Eta Lup. A magnificent
field adorns a beautiful wide pair of mag 3.4 Greenish white and Bluish
7.8 companion stars at a leisurely 15" separation. Two other wide stars
form an isosceles triangle, with a deep Yellow
star at the apex. HS 0!
|
|||
| Luis.Balanzino | ||||
| Star:
RMK 21 (eta Lupi)
Date & Time: June 2003 Seeing: variable Transparency: variable Location of site: Cordoba, Argentina (31.400S, 64.183W) Site classification: Urban area with considerable light pollution Conditions: Temperatures between 10-15º C Sky darkness: 4 limited by twilight <Limiting magnitude> Telescope: TAL-1 eq. reflector (110mm f/7.3) Eyepieces: TAL and 18mm Celestron Ultima Plossl, 15mm TAL Kellner Magnification: 32x, 45x, 54x |
Another
attractive pair in Lupus, the primary is bright and bluish, the secondary
white. Well split at 45x. This double closely remembers me Beta Cephei.
|
|||