17549-2453 SNA 74 (63 Oph)
17h 54m 54.04s -24° 53' 13.5" P.A. 43.00 sep 4.5 mag 5.97,12.73 Sp O8II dist. 1298.7 pc (4236.36 l.y.)
Coord 2000 |
17549-2453 |
|
Discov num |
SNA 74 |
|
Comp |
|
|
Coord arcsec 2000 |
17 54 54.04 -24 53 13.5 |
|
Date first |
2012 |
|
Date last |
2012 |
|
Obs |
1 |
|
Pa first |
43 |
|
Pa last |
42.5 |
|
P.A. Now (θ) |
42.5° |
|
Sep first |
4.5 |
|
Sep last |
4.46 |
|
Sep. Now (ρ) |
4.46" |
|
Mag pri |
5.97 |
|
Mag sec |
12.73 |
|
delta mag (ΔM) |
6.76 |
|
Spectral class |
O8II (blue) |
|
Pri motion ra |
+002 |
|
Sec motion ra |
|
|
Pri motion dec |
-003 |
|
Sec motion dec |
|
|
Notes |
K
(K-band or other infrared magnitudes) |
|
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
63 Oph |
|
Constellation |
Sagittarius |
|
SAO |
185928 |
|
HIP |
87706 |
|
Tycho2 |
6845-00692-1 |
|
Gaia DR2 |
4067435566661212672 |
|
HD |
162978 |
|
HR |
6672 |
|
GC |
24347 |
|
CD |
CD-2413615 |
|
Flamsteed |
63 Ophiuchi |
|
Flamsteed name |
63 Oph |
|
Distance |
1298.7 |
|
Distance ly |
4236.36 |
|
Bayer or Flamsteed indentifiers not always match the correct constellation because of procession and proper motion of the star. (Oph vs Sgr)