20169+4022 BU 661 AC
20h 16m 55.28s +40° 21' 54.3" P.A. 217.00 sep 111.7 mag 5.44,13.68 Sp K3.5IIab dist. 483.09 pc (1575.84 l.y.)
Coord 2000 |
20169+4022 |
|
Discov num |
BU 661 |
|
Comp |
AC |
|
Coord arcsec 2000 |
20 16 55.28 +40 21 54.3 |
|
Date first |
1912 |
|
Date last |
2014 |
|
Obs |
5 |
|
Pa first |
218 |
|
Pa last |
217.2 |
|
P.A. Now (θ) |
217.2° |
|
Sep first |
111.7 |
|
Sep last |
111.742 |
|
Sep. Now (ρ) |
111.742" |
|
Mag pri |
5.44 |
|
Mag sec |
13.68 |
|
delta mag (ΔM) |
8.24 |
|
Spectral class |
K3.5IIab (yellow-orange) |
|
Pri motion ra |
+002 |
|
Sec motion ra |
+001 |
|
Pri motion dec |
-001 |
|
Sec motion dec |
-002 |
|
Notes |
|
|
rPM=0.632
Nature of this double is uncertain.
20169+4022 SYSTEM COMPONENTS
Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
Show |
NSV12981 |
49410 |
20 16 55 +40 21 54 |
BU 661 AB |
2014 |
16 |
69 |
12.3 |
5.24 |
11.50 |
6.26 |
|
|
Show |
|
49410 |
20 16 55 +40 21 54 |
BU 661 AC |
2014 |
5 |
217 |
111.7 |
5.44 |
13.68 |
8.24 |
|
<=== |
Triple system
3 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
Var name |
NSV12981 |
|
Constellation |
Cygnus |
|
SAO |
49410 |
|
HIP |
99968 |
|
Tycho2 |
3155-02323-1 |
|
Gaia DR2 |
2062313797982404608 |
|
HD |
193092 |
|
HR |
7759 |
|
ADS |
13640 |
|
BD |
BD+39 4114 |
|
Distance |
483.09 |
|
Distance ly |
1575.84 |
|