V647 Aurigae = 1RXS J063631.9+353537

Links to this object in VSX and in Swift BAT 157 month survey

A finding chart for V647 Aur

SkyView image of V647 Aur (see important notes).

Position

Equatorial: 06^h36^m32.56^s, +35^d35^m43.2^s (Gaia)
Galactic: l= 179.19, b=+12.62

Finding Chart:

Gaensicke et al. (2005)

Brigntness:

Optical: G=16.0 (Gaia); X-rays: 1.3x10^-11 ergs cm^-2s^-1 (BAT 157m; 14-195 keV), 8.0x10^-12 ergs cm^-2s^-1 (4XMM-DR11)

IP Credential:

**** (Confirmed): The coherence and the persistence of multiple optical periods have been demonstrated, and apparent inconsistency with previous results can be explained. The Pdot appears to be large, though, and the orbital period is only indirectly known.

Periods:

Orbital: 0.144402 d = 3.46565 h = 12476.3 s, infered from spacing of sidebands in optical photometry.
Spin: 0.0107976 d = 15.548538 m = 932.9123 s from optical photometry and (probably) in the X-ras
HJD = 2455977.79905(9) + 0.010797596(13)E
(Kozhevnikov (2014)) for the spin maxima.
Others: 0.00116702 d = 16.8051 m = 1008.3080 s, the dominant period in optical photometry, is identified with the first (\omega-\Omega) beat.
HJD = 2455977.797720(40) + 0.0116702311(44)E
(Kozhevnikov (2014)) for the maxima. Also seen is the second (\omega-2\Omega) beat period at 1096.955(4) s.

Inclination:

Distance: