21072+3958 ES 1990 AB
21h 07m 19.64s +39° 57' 51.0" P.A. 38.00 sep 5.8 mag 10.86,12.78 Sp A0IV
| Coord 2000 |
21072+3958 |
|
Discov num |
ES 1990 |
|
Comp |
AB |
|
Coord arcsec 2000 |
21 07 19.64 +39 57 51.0 |
|
| Date first |
1892 |
|
Date last |
2014 |
|
Obs |
7 |
|
| Pa first |
41 |
|
Pa last |
38.4 |
|
P.A. Now (θ) |
38.4° |
|
| Sep first |
5.5 |
|
Sep last |
5.775 |
|
Sep. Now (ρ) |
5.775" |
|
| Mag pri |
10.86 |
|
Mag sec |
12.78 |
|
delta mag (ΔM) |
1.92 |
|
Spectral class |
A0IV (white) |
|
| Pri motion ra |
+000 |
|
Sec motion ra |
+000 |
|
| Pri motion dec |
-007 |
|
Sec motion dec |
+002 |
|
| Notes |
|
|
rPM=1.286
This double is not physical.
21072+3958 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
21 07 20 +39 57 51 |
TDT 2765 Aa,Ab |
1991 |
1 |
149 |
0.4 |
11.31 |
11.56 |
0.25 |
|
|
| Show |
|
|
21 07 20 +39 57 51 |
ES 1990 AB |
2014 |
7 |
38 |
5.8 |
10.86 |
12.78 |
1.92 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3172-01586-1 |
|
Gaia DR2 |
1968427148627074688 |
|
ADS |
14663 |
|
