21045+5904 MLB 1090
21h 04m 27.55s +59° 04' 21.0" P.A. 34.00 sep 9.5 mag 10.18,12.76 Sp B8 dist. 502.51 pc (1639.19 l.y.)
| Coord 2000 |
21045+5904 |
|
Discov num |
MLB1090 |
|
Comp |
|
|
Coord arcsec 2000 |
21 04 27.55 +59 04 21.0 |
|
| Date first |
1918 |
|
Date last |
2015 |
|
Obs |
10 |
|
| Pa first |
30 |
|
Pa last |
33.6 |
|
P.A. Now (θ) |
33.6° |
|
| Sep first |
9.8 |
|
Sep last |
9.536 |
|
Sep. Now (ρ) |
9.536" |
|
| Mag pri |
10.18 |
|
Mag sec |
12.76 |
|
delta mag (ΔM) |
2.58 |
|
Spectral class |
B8 (blue-white) |
|
| Pri motion ra |
-005 |
|
Sec motion ra |
+006 |
|
| Pri motion dec |
-004 |
|
Sec motion dec |
-008 |
|
| Notes |
|
|
rPM=1.17
This double is not physical.
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cepheus |
|
SAO |
33113 |
|
HIP |
104021 |
|
Tycho2 |
3964-00929-1 |
|
| Gaia DR2 |
2190686453456707072 |
|
HD |
239566 |
|
BD |
BD+58 2220 |
|
Distance |
502.51 |
|
| Distance ly |
1639.19 |
|
