18528-1725 HU 257 (HD 174739)
18h 52m 45.82s -17° 25' 21.4" P.A. 341.00 sep 2.1 mag 9.79,11.51 Sp Fm
| Coord 2000 |
18528-1725 |
|
Discov num |
HU 257 |
|
Comp |
|
|
Coord arcsec 2000 |
18 52 45.82 -17 25 21.4 |
|
| Date first |
1900 |
|
Date last |
1991 |
|
Obs |
6 |
|
| Pa first |
341 |
|
Pa last |
340.6 |
|
P.A. Now (θ) |
340.6° |
|
| Sep first |
2.3 |
|
Sep last |
2.13 |
|
Sep. Now (ρ) |
2.13" |
|
| Mag pri |
9.79 |
|
Mag sec |
11.51 |
|
delta mag (ΔM) |
1.72 |
|
Spectral class |
Fm (yellow-white) |
|
| Pri motion ra |
+006 |
|
Sec motion ra |
+006 |
|
| Pri motion dec |
-027 |
|
Sec motion dec |
-027 |
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 174739 |
|
Constellation |
Sagittarius |
|
Tycho2 |
6285-03180-1 |
|
Gaia DR2 |
4098985189508283392 |
|
| HD |
174739 |
|
ADS |
11770 |
|