Re: Orion 3 Rk Obs (probably)
Ed Cannon (ecannon@mail.utexas.edu)
Thu, 06 May 1999 02:49:40 -0500
Sue Worden wrote:
] I just observed what I believe
] was the Orion 3 Rk (99 24B / 25728), peak magnitude about +1.0,
] one-power in light polluted skies with Polaris barely visible.
] ...
] 30.314 97.866 920. BCRC, Austin, Texas 1950 6.0 22 F F T T T
] *** 1999 May 5 Wed evening *** Times are PM CDT *** 2057 559
] H M S Tim Al Azi C Dir Mag Dys F Hgt Shd Rng EW Phs R A Dec
] 25727 Orion 3 99 24A
] 9 7 22 .0 54 191 C 266 19.2 0 9 269 170 328 2.8 70 10 2 -5.4
] 25728 Orion 3 Rk 99 24B 3.0 Delta 3
] 9 7 56 .0 54 190 C 266 2.2 0 9 268 168 326 2.9 70 10 3 -5.1
The culminations above were at 2:07:22 and 2:07:56 on 6 May UTC.
Mike McCants tracked the leading object with his telescope, and I
think he said the object was varying in magnitude. It was barely
visible at one-power (about +3.5 with some twilight still in the
sky) from the BCRC site, which is significantly better than Sue's
location for this observation. If the really bright one (+1)
that Sue and Mike and I observed was the Delta III, its intrinsic
magnitude must be brighter than that of a Delta II!
ORION 3
1 25727U 99024A 99126.20482701 .00468611 -39309-5 30580-3 0 73
2 25727 29.4954 43.5167 0850040 171.5159 190.0857 14.37573172 178
DELTA R/B
1 25728U 99024B 99126.13586133 .00680653 -38937-5 48974-3 0 74
2 25728 29.5218 44.1576 0848499 170.4339 191.3575 14.37186096 140
DEB
1 25729U 99024C 99126.06783565 .19020710 -55302-5 43866-2 0 65
2 25729 29.6163 43.8660 0543746 173.3247 42.0722 15.14575290 137
Ed Cannon - ecannon@mail.utexas.edu - Austin, Texas, USA