21268+3731 HEI 9004 AC
21h 26m 47.68s +37° 31' 03.7" P.A. 275.00 sep 25.5 mag 8.91,12.75 Sp K0 dist. 314.47 pc (1025.8 l.y.)
| Coord 2000 |
21268+3731 |
|
Discov num |
HEI9004 |
|
Comp |
AC |
|
Coord arcsec 2000 |
21 26 47.68 +37 31 03.7 |
|
| Date first |
1929 |
|
Date last |
2015 |
|
Obs |
6 |
|
| Pa first |
273 |
|
Pa last |
274.8 |
|
P.A. Now (θ) |
274.8° |
|
| Sep first |
25.4 |
|
Sep last |
25.455 |
|
Sep. Now (ρ) |
25.455" |
|
| Mag pri |
8.91 |
|
Mag sec |
12.75 |
|
delta mag (ΔM) |
3.84 |
|
Spectral class |
K0 (yellow-orange) |
|
| Pri motion ra |
+000 |
|
Sec motion ra |
-004 |
|
| Pri motion dec |
-022 |
|
Sec motion dec |
-013 |
|
| Notes |
|
|
rPM=0.448
Nature of this double is uncertain.
21268+3731 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
HD 204324 |
71348 |
21 26 48 +37 31 04 |
SEI 1516 AB |
1895 |
1 |
335 |
3.9 |
7.91 |
9.60 |
1.69 |
|
|
| Show |
|
71348 |
21 26 48 +37 31 04 |
HEI 9004 AC |
2015 |
6 |
275 |
25.5 |
8.91 |
12.75 |
3.84 |
|
<=== |
| Show |
|
71348 |
21 26 48 +37 31 04 |
HEI 9004 AD |
2015 |
6 |
335 |
109.8 |
7.91 |
9.73 |
1.82 |
|
|
| Show |
|
|
21 26 44 +37 32 42 |
COU 1821 Da,Db |
2014 |
7 |
96 |
0.7 |
10.37 |
10.39 |
0.02 |
|
|
Quintuple system
4 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
SAO |
71348 |
|
HIP |
105894 |
|
Tycho2 |
3182-00970-1 |
|
| Gaia DR2 |
1963780444991070592 |
|
HD |
204324 |
|
BD |
BD+36 4564 |
|
Distance |
314.47 |
|
| Distance ly |
1025.8 |
|
