19557+4024 HJ 604 (HD 188891)
19h 55m 44.76s +40° 23' 30.2" P.A. 93.00 sep 70.6 mag 7.35,9.33 Sp B1V dist. 6250 pc (20387.5 l.y.)
| Coord 2000 |
19557+4024 |
|
Discov num |
HJ 604 |
|
Comp |
|
|
Coord arcsec 2000 |
19 55 44.76 +40 23 30.2 |
|
| Date first |
1893 |
|
Date last |
2015 |
|
Obs |
20 |
|
| Pa first |
94 |
|
Pa last |
92.6 |
|
P.A. Now (θ) |
92.6° |
|
| Sep first |
70.5 |
|
Sep last |
70.612 |
|
Sep. Now (ρ) |
70.612" |
|
| Mag pri |
7.35 |
|
Mag sec |
9.33 |
|
delta mag (ΔM) |
1.98 |
|
Spectral class |
B1V (blue-white) |
|
| Pri motion ra |
-003 |
|
Sec motion ra |
-002 |
|
| Pri motion dec |
-007 |
|
Sec motion dec |
-002 |
|
| Notes |
N
(See Notes) |
|
rPM=0.67
Nature of this double is uncertain.
OTHER CATALOGS AND DESIGNATIONS
| Name |
HD 188891 |
|
Constellation |
Cygnus |
|
SAO |
48983 |
|
HIP |
98061 |
|
| Tycho2 |
3141-03158-1 |
|
Gaia DR2 |
2073593412917417600 |
|
HD |
188891 |
|
BD |
BD+40 3948 |
|
| Distance |
6250 |
|
Distance ly |
20387.5 |
|
