21538+6237 S 800 AB (EM Cep)
21h 53m 48.11s +62° 36' 51.9" P.A. 145.00 sep 62.8 mag 7.07,7.91 Sp B1V+B1V dist. 492.61 pc (1606.89 l.y.)
| Coord 2000 |
21538+6237 |
|
Discov num |
S 800 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 53 48.11 +62 36 51.9 |
|
| Date first |
1824 |
|
Date last |
2022 |
|
Obs |
32 |
|
| Pa first |
145 |
|
Pa last |
145 |
|
P.A. Now (θ) |
145° |
|
| Sep first |
62.5 |
|
Sep last |
62.8 |
|
Sep. Now (ρ) |
62.8" |
|
| Mag pri |
7.07 |
|
Mag sec |
7.91 |
|
delta mag (ΔM) |
0.84 |
|
Spectral class |
B1V+B1V (blue-white/blue-white) |
|
| Pri motion ra |
-003 |
|
Sec motion ra |
-003 |
|
| Pri motion dec |
-001 |
|
Sec motion dec |
-001 |
|
| Notes |
N
(See Notes) |
|
Nature of this double is uncertain.
21538+6237 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
19718 |
21 53 48 +62 36 52 |
PET 13 Aa,Ab |
2007 |
1 |
212 |
0.1 |
7.03 |
|
|
|
|
| Show |
EM Cep |
19718 |
21 53 48 +62 36 52 |
S 800 AB |
2022 |
32 |
145 |
62.8 |
7.07 |
7.91 |
0.84 |
|
<=== |
| Show |
|
19718 |
21 53 48 +62 36 52 |
ES 144 AC |
2015 |
5 |
278 |
20.5 |
7.07 |
12.62 |
5.55 |
|
|
| Show |
|
19719 |
21 53 53 +62 36 01 |
ES 144 BD |
2015 |
8 |
43 |
23.6 |
7.07 |
12.00 |
4.93 |
|
|
| Show |
|
|
21 53 45 +62 36 55 |
PET 13 CE |
2015 |
2 |
290 |
1.2 |
11.82 |
|
|
|
|
Sextuple system
5 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Var name |
EM Cep |
|
Constellation |
Cepheus |
|
SAO |
19718 |
|
HIP |
108073 |
|
| Tycho2 |
4266-02575-1 |
|
Gaia DR2 |
2204369875668251264 |
|
HD |
208392 |
|
GC |
30671 |
|
| BD |
BD+61 2216 |
|
Distance |
492.61 |
|
Distance ly |
1606.89 |
|
