FO Aquarii

From Wikipedia, the free encyclopedia
Jump to: navigation, search
FO Aquarii
Observation data
Epoch J2000      Equinox J2000
Constellation Aquarius
Right ascension 22h 17m 55.38s[1]
Declination −08° 21′ 04.6″[1]
Apparent magnitude (V) 12.7[2]
Characteristics
Apparent magnitude (B) 13.70[1]
Apparent magnitude (R) 13.60[1]
Apparent magnitude (J) 12.87[1]
Apparent magnitude (H) 12.75[1]
Apparent magnitude (K) 12.51[1]
Variable type DQ[3]
Orbit
Period (P) 4.85 hr[4]
Other designations
2E 4588, 1RXS J221753.9-082115, CS 22886-0021, H 2215-086
Database references
SIMBAD data
Data sources:
Hipparcos Catalogue,
CCDM (2002),
Bright Star Catalogue (5th rev. ed.)

FO Aquarii is an intermediate polar[3] in the constellation Aquarius. The white dwarf and companion star orbit each other with a period of approximately 4.85 hours.[4] The system has gotten as bright as apparent magnitude 12.7 and has been as dim as magnitude 14.2.[5]

References[edit]

  1. ^ a b c d e f g Cutri, R. M.; Skrutskie, M. F.; van Dyk, S.; Beichman, C. A.; Carpenter, J. M.; Chester, T.; Cambresy, L.; Evans, T.; Fowler, J.; Gizis, J.; Howard, E.; Huchra, J.; Jarrett, T.; Kopan, E. L.; Kirkpatrick, J. D.; Light, R. M.; Marsh, K. A.; McCallon, H.; Schneider, S.; Stiening, R.; Sykes, M.; Weinberg, M.; Wheaton, W. A.; Wheelock, S.; Zacarias, N. (2003). "2MASS All-Sky Catalog of Point Sources (Cutri+ 2003)". University of Massachusetts and Infrared Processing and Analysis Center (IPAC/California Institute of Technology). Bibcode:2003yCat.2246....0C. 
  2. ^ Samus’, N. N.; Goranskii, V. P.; Durlevich, O. V.; Zharova, A. V.; Kazarovets, E. V.; Kireeva, N. N.; Pastukhova, E. N.; Williams, D. B.; Hazen, M. L. (2003). "An electronic version of the second volume of the General Catalogue of Variable Stars with improved coordinates". Astronomy Letters 29 (7): 468. doi:10.1134/1.1589864.  edit
  3. ^ a b Pekön, Y.; Balman, Ş. (2012). "Orbital-phase-resolved Spectroscopy of the Intermediate Polar FO Aqr Using XMM-Newton Observatory Data". The Astronomical Journal 144 (2). 53. Bibcode:2012AJ....144...53P. doi:10.1088/0004-6256/144/2/53. 
  4. ^ a b Osborne, J.; Mukai, K. (1989). "New Orbital and Spin Ephemerides of the Intermediate Polar Fo-Aquarii = H:2215-086". Monthly Notices of the Royal Astronomical Society 238 (3): 1233–1246. Bibcode:1989MNRAS.238.1233O. 
  5. ^ VSX; Otero, S. A. (24 May 2011). "FO Aquarii". AAVSO Website. American Association of Variable Star Observers. Retrieved 10 October 2014.