V 902 Mon

An Eclipsing Cataclysmic Variable Star

V902 Mon is a cataclysmic variable star of the intermediate polar type, located in the constellation Monoceros. The system contains a moderately magnetic white dwarf and a donor star transferring mass. The accretion flow occurs via a disk, but closer to the white dwarf, matter is magnetically channeled onto its poles. V902 Mon shows flickering, periodic brightness variations, and eclipses, which allow astronomers to model the system's structure. The white dwarf’s spin period is about 220 seconds, while the orbital period is approximately 8.16 hours, making it one of the few eclipsing intermediate polars known.

Photometry & Images

Catalogue Gaia
RA 96.943350790°
DEC 1.803055881°
U --
B --
V --
Parallax (mas) 0.33 ± 0.08
Light curve Light curve2

TESS Data

sectors33 sectors87

AAVSO Data

aavsodataimage

Spectroscopy

Spectrum of V902 Mon

References

1. Worpel H. et al. V902 Monocerotis: A likely disc-accreting intermediate polar //Astronomy & Astrophysics. – 2018. – Т. 617. – С. A52.

2. Rawat N. et al. A step towards unveiling the nature of three cataclysmic variables: LS Cam, V902 Mon, and SWIFT J0746. 3-1608 //Monthly Notices of the Royal Astronomical Society. – 2022. – Т. 512. – №. 4. – С. 6054-6066.