IPs
AE Aqr
FO Aqr
XY Ari
V405 Aur
HT Cam
MU Cam
DW Cnc
BG CMi
V709 Cas
V1025 Cen
TV Col
TX Col
UU Col
V2306 Cyg
YY Dra
PQ Gem
DQ Her
EX Hya
NY Lup
V2400 Oph
GK Per
AO Psc
WX Pyx
V1223 Sgr
V1062 Tau
EI UMa
IGR 00234
IGR 15094
IGR 17303
Swift J0732
RX J0704
RX J1803
RX J2133
XSS 00564
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V381 Velorum = 1RXS J101659.4-410332 = RX J1016.9-4103

SkyView image
of V381 Vel (see
important notes).
- Position
-
- Equatorial: 10h16m58.90s,
-41d03m44.6s (J2000)
- Galactic: l=274.06, b=+12.99
- Finding Chart:
- Greiner & Schwarz (1998)
- Brigntness:
- Optical: B~18.5; X-rays:
- IP Credential:
- * (Doubtful): Although Greiner & Schwarz preferred 134 min period,
they themselves note that "common periods of 123, 134, and 149 min
are possible" due to poor sampling. Given the strong pereference
for the 122.3 min period by Vennes, Ferrario & Wickramasinghe, and
the fact that 134 min is a 1 day alias of this, it's almost certainly
a true polar with a 122.3 min period.
- Periods:
-
- Orbital: 0.08493 d = 2.038 hr = 7338 s, from optical spectroscopy. (?)
- Spin: 0.08493 d = 122.3 min = 7338 s, from optical spectroscopy. (?)
- Others: 134 min (1 day alias of 122.3 min period) was weakly preferred by
Greiner & Schwarz.
- Inclination:
-
- Distance:
- 615+/-150 pc.
References
Please send your comments, suggestions etc. to
Koji.Mukai@nasa.gov
and/or
Koji.Mukai@umbc.edu
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