.jpg)
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.
In the Vinony graph
Vinony's link graph records 296 inbound references to Delta Ursae Majoris, and connects out to list of stars in Ursa Major, year and Ursa Major.
It sits within the topics A-type main-sequence stars, Bayer objects and Big Dipper.
Vinony links it to 29 Wikipedia language editions.
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)
via Wikidata · CC0
~3 min read
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.