15339+6354 STT 299 (TW Dra)
15h 33m 51.06s +63° 54' 25.7" P.A. 24.00 sep 3.3 mag 7.50,9.89 Sp A6V+KIII dist. 138.7 pc (452.44 l.y.)
Coord 2000 |
15339+6354 |
|
Discov num |
STT 299 |
|
Comp |
|
|
Coord arcsec 2000 |
15 33 51.06 +63 54 25.7 |
|
Date first |
1843 |
|
Date last |
2015 |
|
Obs |
40 |
|
Pa first |
21 |
|
Pa last |
24.2 |
|
P.A. Now (θ) |
24.2° |
|
Sep first |
3.3 |
|
Sep last |
3.295 |
|
Sep. Now (ρ) |
3.295" |
|
Mag pri |
7.50 |
|
Mag sec |
9.89 |
|
delta mag (ΔM) |
2.39 |
|
Spectral class |
A6V+KIII (white/yellow-orange) |
|
Pri motion ra |
+010 |
|
Sec motion ra |
+011 |
|
Pri motion dec |
+017 |
|
Sec motion dec |
+022 |
|
Notes |
N
(See Notes) |
|
rPM=0.207 (< 0.3, Physical double)
This double is physical.
OTHER CATALOGS AND DESIGNATIONS
Var name |
TW Dra |
|
Constellation |
Draco |
|
SAO |
16767 |
|
HIP |
76196 |
|
Tycho2 |
4184-00061-1 |
|
Gaia DR2 |
1640708022815757568 |
|
HD |
139319 |
|
BD |
BD+64 1077 |
|
Distance |
138.7 |
|
Distance ly |
452.44 |
|