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Delta Ursae Majoris
Sign in to saveAlso known as Megrez, 69 Ursae Majoris, HD 106591, The Celestial Balance, 69 UMa, δ Ursae Majoris, δ UMa, HR 4660
Megrez , also called Delta Ursae Majoris (δ Ursae Majoris, abbreviated Delta UMa, δ UMa), is a star in the northern constellation of Ursa Major. With an apparent magnitude of +3.3, it is the dimmest of the seven stars in the Big Dipper asterism. Parallax measurements yield a distance estimate of from the Sun.
Wikidata facts
- Part of
- Big Dipper
- Constellation
- Ursa Major
- Distance from Earth
- 24.7967
- Radius
- 1.4
- Mass
- 1.63
- Image
- Ursa major star name.png
Show 17 more facts
- catalog code
- UBV M 17960
- spectral class
- A2
- stellar rotational velocity
- 200
- apparent magnitude
- 3.311102
- right ascension
- 183.85650263625
- declination
- 57.03261544611
- effective temperature
- 8100
- parallax
- 40.3279
- radial velocity
- -9.0
- surface gravity
- 5000
- epoch
- J2000.0
- luminosity
- 14
- absolute magnitude
- 1.39
- right ascension component of proper motion
- 103.947
- declination component of proper motion
- 8.141
- age estimated by a dating method
- 0.3
- metallicity
- -0.6
Sources (3)
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Encyclopedic overview
4 sectionsContents
- Stellar properties
- Nomenclature
- Namesakes
- References
Megrez , also called Delta Ursae Majoris (δ Ursae Majoris, abbreviated Delta UMa, δ UMa), is a star in the northern constellation of Ursa Major. With an apparent magnitude of +3.3, it is the dimmest of the seven stars in the Big Dipper asterism. Parallax measurements yield a distance estimate of from the Sun.
== Stellar properties== thumb|left|upright=1.2|The Big Dipper with Delta Ursae Majoris
Excerpted from Wikipedia’s “Delta Ursae Majoris” article, available under the CC BY-SA 4.0 licence.