18383-2525 HO 436 (HD 171878)
18h 38m 15.25s -25° 25' 17.2" P.A. 178.00 sep 4.1 mag 8.30,10.12 Sp B9.5IV dist. 395.26 pc (1289.34 l.y.)
Coord 2000 |
18383-2525 |
|
Discov num |
HO 436 |
|
Comp |
|
|
Coord arcsec 2000 |
18 38 15.25 -25 25 17.2 |
|
Date first |
1889 |
|
Date last |
1999 |
|
Obs |
14 |
|
Pa first |
177 |
|
Pa last |
177.6 |
|
P.A. Now (θ) |
177.6° |
|
Sep first |
4.2 |
|
Sep last |
4.05 |
|
Sep. Now (ρ) |
4.05" |
|
Mag pri |
8.30 |
|
Mag sec |
10.12 |
|
delta mag (ΔM) |
1.82 |
|
Spectral class |
B9.5IV (blue-white) |
|
Pri motion ra |
+007 |
|
Sec motion ra |
+004 |
|
Pri motion dec |
+006 |
|
Sec motion dec |
-008 |
|
Notes |
|
|
rPM=1.553
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
Name |
HD 171878 |
|
Constellation |
Sagittarius |
|
SAO |
187073 |
|
HIP |
91380 |
|
Tycho2 |
6862-01675-1 |
|
Gaia DR2 |
4076395108993661952 |
|
HD |
171878 |
|
GC |
25461 |
|
CD |
CD-2513305 |
|
Distance |
395.26 |
|
Distance ly |
1289.34 |
|