AN Ursae Majoris

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AN Ursae Majoris

A light curve for AN Ursae Majoris. The main plot (from Catalina Sky Survey data[1]) shows the long term variation, and the inset plot (from TESS data[2]) shows the variation over the orbital period.
Observation data
J2000.0
Constellation Ursa Major
Right ascension 11h 04m 25.65570s[3]
Declination +45 03 13.9415°[3]
Apparent magnitude (V) 14.9 – 20.2[4]
Characteristics
Spectral type pec(e+cont)[4]
Variable type
Eclipsing + Polar[4]
Distance
1,050 ± 50 ly
(320 ± 10 pc)
Semi-amplitude
(K1)
(primary)		321 km/s
Details
White dwarf
Mass0.4–0.6[6] M☉
Temperature≈ 20,000[6] K
Other designations
AN UMa, PG 1101+453,[7] S 07738, X 11016+454[4]
Database references
SIMBADdata

AN Ursae Majoris is a

light years away from the Sun.[3]

This is a single-lined

MG.[6]

References

  1. ^ "The Catalina Surveys Data Release 2". Catalina Sky Survey. Caltech. Retrieved 19 April 2022.
  2. ^ "MAST: Barbara A. Mikulski Archive for Space Telescopes". Space Telescope Science Institute. Retrieved 8 December 2021.
  3. ^
    doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  4. ^
    S2CID 125853869
    .
  5. ^
    doi:10.1086/158301
    .
  6. ^
    doi:10.1515/astro-2017-0234
    .
  7. ^ "AN UMa". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-08-10.
  8. hdl:10995/27061
    .
  9. doi:10.1086/182506
    .
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