04422+2257 S 455 AB (Tau Tau)
04h 42m 14.70s +22° 57' 25.1" P.A. 214.00 sep 62.5 mag 4.24,7.02 Sp B3V dist. 122.1 pc (398.29 l.y.)
| Coord 2000 |
04422+2257 |
|
Discov num |
S 455 |
|
Comp |
AB |
|
Coord arcsec 2000 |
04 42 14.70 +22 57 25.1 |
|
| Date first |
1777 |
|
Date last |
2017 |
|
Obs |
46 |
|
| Pa first |
212 |
|
Pa last |
213.8 |
|
P.A. Now (θ) |
213.8° |
|
| Sep first |
60.0 |
|
Sep last |
62.5 |
|
Sep. Now (ρ) |
62.5" |
|
| Mag pri |
4.24 |
|
Mag sec |
7.02 |
|
delta mag (ΔM) |
2.78 |
|
Spectral class |
B3V (blue-white) |
|
| Pri motion ra |
-003 |
|
Sec motion ra |
-001 |
|
| Pri motion dec |
-020 |
|
Sec motion dec |
-014 |
|
| Notes |
N
(See Notes) |
|
rPM=0.313
Nature of this double is uncertain.
04422+2257 SYSTEM COMPONENTS
| Show |
name |
SAO |
coord |
wds_name |
last |
obs |
pa |
sep |
mag1 |
mag2 |
d_mag |
orb |
current |
| Show |
|
76721 |
04 42 15 +22 57 25 |
MCA 16 Aa,Ab |
2007 |
37 |
36 |
0.3 |
4.33 |
6.97 |
2.64 |
Y |
|
| Show |
Tau Tau |
76721 |
04 42 15 +22 57 25 |
S 455 AB |
2017 |
46 |
214 |
62.5 |
4.24 |
7.02 |
2.78 |
|
<=== |
Triple system
2 estimated visually detectable stars in this system
OTHER CATALOGS AND DESIGNATIONS
| Name |
Tau Tau |
|
Constellation |
Taurus |
|
SAO |
76721 |
|
HIP |
21881 |
|
| Tycho2 |
1830-02129-1 |
|
Gaia DR2 |
146483849656094464 |
|
HD |
29763 |
|
HR |
1497 |
|
| GC |
5715 |
|
BD |
BD+22 739 |
|
Bayer |
Tau Tauri |
|
Bayer name |
Tau Tau |
|
| Flamsteed |
94 Tauri |
|
Flamsteed name |
94 Tau |
|
FK5 |
174 |
|
Distance |
122.1 |
|
| Distance ly |
398.29 |
|
Bayer greek |
τ Tau |
|
