20253+4355 A 291 AC
20h 25m 16.06s +43° 55' 17.0" P.A. 284.00 sep 18.1 mag 9.85,11.19 Sp F0
| Coord 2000 |
20253+4355 |
|
Discov num |
A 291 |
|
Comp |
AC |
|
Coord arcsec 2000 |
20 25 16.06 +43 55 17.0 |
|
| Date first |
1892 |
|
Date last |
2015 |
|
Obs |
14 |
|
| Pa first |
285 |
|
Pa last |
284.1 |
|
P.A. Now (θ) |
284.1° |
|
| Sep first |
17.9 |
|
Sep last |
18.069 |
|
Sep. Now (ρ) |
18.069" |
|
| Mag pri |
9.85 |
|
Mag sec |
11.19 |
|
delta mag (ΔM) |
1.34 |
|
Spectral class |
F0 (yellow-white) |
|
| Pri motion ra |
+005 |
|
Sec motion ra |
+006 |
|
| Pri motion dec |
+008 |
|
Sec motion dec |
+005 |
|
| Notes |
|
|
rPM=0.335
Nature of this double is uncertain.
20253+4355 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
|
20 25 16 +43 55 17 |
A 291 AB |
2016 |
12 |
148 |
0.8 |
9.85 |
10.42 |
0.57 |
|
|
| Show |
|
|
20 25 16 +43 55 17 |
A 291 AC |
2015 |
14 |
284 |
18.1 |
9.85 |
11.19 |
1.34 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Constellation |
Cygnus |
|
Tycho2 |
3164-00785-1 |
|
Gaia DR2 |
2069280161923805824 |
|
