18530-1623 RST 4022 (HD 174801)
18h 53m 00.44s -16° 22' 53.3" P.A. 312.00 sep 0.4 mag 7.22,9.35 Sp B8/9II dist. 555.56 pc (1812.24 l.y.)
Coord 2000 |
18530-1623 |
|
Discov num |
RST4022 |
|
Comp |
|
|
Coord arcsec 2000 |
18 53 00.44 -16 22 53.3 |
|
Date first |
1938 |
|
Date last |
2018 |
|
Obs |
5 |
|
Pa first |
318 |
|
Pa last |
311.5 |
|
P.A. Now (θ) |
311.5° |
|
Sep first |
0.6 |
|
Sep last |
0.38 |
|
Sep. Now (ρ) |
0.38" |
|
Mag pri |
7.22 |
|
Mag sec |
9.35 |
|
delta mag (ΔM) |
2.13 |
|
Spectral class |
B8/9II (blue-white) |
|
Pri motion ra |
+004 |
|
Sec motion ra |
|
|
Pri motion dec |
-010 |
|
Sec motion dec |
|
|
Notes |
|
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 174801 |
|
Constellation |
Sagittarius |
|
SAO |
161933 |
|
HIP |
92671 |
|
Tycho2 |
6281-01454-1 |
|
Gaia DR2 |
4099307282029083904 |
|
HD |
174801 |
|
GC |
25894 |
|
BD |
BD-16 5060 |
|
Distance |
555.56 |
|
Distance ly |
1812.24 |
|