18169-1734 SKF 98
18h 16m 51.20s -17° 33' 32.1" P.A. 243.00 sep 4.0 mag 7.48,7.17 Sp A2
| Coord 2000 |
18169-1734 |
|
Discov num |
SKF 98 |
|
Comp |
|
|
Coord arcsec 2000 |
18 16 51.20 -17 33 32.1 |
|
| Date first |
1999 |
|
Date last |
2015 |
|
Obs |
3 |
|
| Pa first |
242 |
|
Pa last |
242.5 |
|
P.A. Now (θ) |
242.5° |
|
| Sep first |
3.7 |
|
Sep last |
4.005 |
|
Sep. Now (ρ) |
4.005" |
|
| Mag pri |
7.48 |
|
Mag sec |
7.17 |
|
delta mag (ΔM) |
0.31 |
|
Spectral class |
A2 (white) |
|
| Pri motion ra |
+012 |
|
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
| Constellation |
Sagittarius |
|
Gaia DR2 |
4097255382838649600 |
|
