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List of stars in Ursa Minor

From Wikipedia, the free encyclopedia
(Redirected fromUY Ursae Minoris)

This is the list of notablestars in theconstellationUrsa Minor, sorted by decreasing brightness.

NameBFVarHDHIPRADecvis.
mag.		abs.
mag.		Dist. (ly)Sp. classNotes
Polarisα188901176702h 31m 47.08s+89° 15′ 50.9″1.97−3.64431F7:Ib-IIv SBPole Star,Lodestar,Alruccabah,Cynosura,Phoenice, Tramontana, Angel Stern, Navigatoria, Star of Arcady, Yilduz, Mismar, Polyarnaya,Dhruva;classical Cepheid,Vmax = 1.97m,Vmin = 2.00m,P = 3.9696 d
β UMiβ71318737260714h 50m 42.40s+74° 09′ 19.7″2.07−0.87126K4IIIvarKochab, Kokab, Kochah; suspectedvariable,Vmax = 2.02m,Vmin = 2.08m, has a planet (b)
γ UMiγ[1]131374227509715h 20m 43.75s+71° 50′ 02.3″3.04−2.84480A3II-IIIPherkad, Pherkad Major;δ Sct variable, ΔV = 0.05m,P = 0.143009 d
ε UMiε221537518208016h 45m 58.16s+82° 02′ 14.1″4.21−0.92346G5IIIvarRS CVn variable,Vmax = 4.19m,Vmin = 4.23m,P = 39.4809 d
5 UMia[2]51277007069214h 27m 31.52s+75° 41′ 45.4″4.25−0.87345K4III
ζ UMiζ161421057705515h 44m 03.46s+77° 47′ 40.2″4.29−1.02376A3VnAhfa al Farkadain
δ UMiδ231662058582217h 32m 12.90s+86° 35′ 10.8″4.350.61183A1VnYildun, Gildun, Vildiur, Yilduz,Pherkard
RR UMiτ[3]RR1328137319914h 57m 35.12s+65° 55′ 56.6″4.63−0.80398M5IIIsemiregular variable,Vmax = 4.44m,Vmin = 4.85m,P = 43.3 d
4 UMib[4]41245476911214h 08m 51.01s+77° 32′ 50.8″4.80−1.13500K3III
η UMiη211480487982216h 17m 30.50s+75° 45′ 16.9″4.952.5897F5VAnwar al Farkadain, Alasco
θ UMiθ151396697600815h 31m 25.05s+77° 20′ 57.6″5.00−2.03832K5IIIsuspected variable
11 UMiι[5]111367267479315h 17m 05.88s+71° 49′ 26.0″5.02−0.37389K4IIIPherkad Minor; has aplanet (b)
HD 136064ν[6]1360647460515h 14m 38.00s+67° 20′ 51.6″5.153.1383F9IV
HD 124730ξ[7]1247306937314h 12m 04.05s+69° 25′ 57.6″5.18−0.50445M2IIIvariable star, ΔV = 0.010m,P = 4.43184 d
19 UMiκ[8]191469267928016h 10m 49.53s+75° 52′ 39.1″5.48−1.07665B8V
HD 118904σ[9]1189046643513h 37m 11.05s+71° 14′ 32.2″5.500.05400K2IIIhas a planet (b)
HD 1496811496818048016h 25m 43.53s+78° 57′ 49.0″5.552.42138F0V
HD 1330021330027257314h 50m 19.63s+82° 30′ 45.0″5.632.45141F9V
HD 1402271402277651915h 37m 39.21s+69° 16′ 59.6″5.65−1.51881M0III
HD 1456221456227866116h 03m 31.40s+76° 47′ 38.0″5.73−0.53581A3V
HD 1589961589968476917h 19m 37.05s+80° 08′ 11.0″5.74−1.67991K5IIIhas a planet (b)
24 UMi241669268569917h 30m 46.97s+86° 58′ 04.9″5.782.38156A2m
HD 1171871171876553613h 26m 08.02s+72° 23′ 29.4″5.82−1.631009M1III
HD 1200841200846690313h 42m 39.38s+78° 03′ 51.6″5.910.96318G7III:has a planet (b)
HD 1523031523038185416h 43m 06.14s+77° 30′ 48.5″5.993.21117F4V
HD 1473211473217960116h 14m 33.47s+73° 23′ 41.3″6.02−0.78748A3V
VX UMiVX1551548331717h 01m 40.08s+75° 17′ 51.6″6.172.91146F0IVnγ Dor variable
HD 1353841353847427215h 10m 44.40s+67° 46′ 51.8″6.180.23504A8Vn
HD 1339941339947370615h 03m 57.73s+65° 55′ 11.0″6.220.45464A2Vs
UY UMiUY1071925976712h 15m 20.67s+87° 42′ 00.0″6.272.93152F2Vγ Dor variable
HD 1292451292457119614h 33m 38.62s+79° 39′ 36.8″6.270.52461K3III
λ UMiλ1830308453517h 16m 57.26s+89° 02′ 15.8″6.31−0.84876M1IIIsemiregular variable
HD 1071131071135987912h 16m 49.35s+86° 26′ 09.0″6.333.34129F4V
HD 1516231516238142816h 37m 52.81s+78° 55′ 06.8″6.330.81414G9III
HD 1502751502758085016h 30m 39.08s+77° 26′ 45.1″6.350.87408K1III
20 UMi201471427942016h 12m 32.20s+75° 12′ 38.1″6.36−0.49765K2IV
HD 1138891138896382213h 04m 49.78s+73° 01′ 29.8″6.431.01396F0V
3 UMiμ[10]31240636895614h 06m 56.48s+74° 35′ 37.5″6.430.79438A7V
HD 59145914728301h 33m 48.52s+89° 00′ 56.6″6.461.49321A3V
π1 UMi Aπ11397777580915h 29m 11.97s+80° 26′ 54.0″6.574.8572G8IV-V+...
9 UMi91336217344015h 00m 27.71s+71° 45′ 54.9″6.644.00110G0
8 UMi81330867313614h 56m 48.32s+74° 54′ 03.3″6.830.95489K0Baekdu; has aplanet (b)
π2 UMiπ2181416527669515h 39m 38.72s+79° 58′ 59.2″6.891.54384F2
HD 1507061507068090216h 31m 17.59s+79° 47′ 23.2″7.034.8589G0has an unconfirmed planet
U UMiU1255566981614h 17m 19.90s+66° 47′ 39.2″7.10858M6-8eMira variable,Vmax = 7.1m,Vmin = 13m,P = 330.92 d
π1 UMi Bπ11398137582915h 29m 24.36s+80° 27′ 00.0″7.305.6271G5
14 UMi141376867515215h 21m 30.52s+73° 28′ 35.1″7.383.51194F5
S UMiS1394927584715h 29m 34.57s+78° 38′ 00.3″7.52450M6.5-7.5eMira variable,Vmax = 7.5m,Vmin = <13.2m,P = 331 d
V UMiV1192276656213h 38m 41.07s+74° 18′ 36.3″7.811280M...semiregular variable,Vmax = 7.06m,Vmin = 8.7m,P = 73 d
W UMiW1502657906916h 08m 27.28s+86° 11′ 59.6″8.651600A2VAlgol variable,Vmax = 8.51m,Vmin = 9.59m,P = 1.7011576 d
RU UMiRU13h 38m 56.81s+69° 48′ 11.2″10.24A2β Lyr variable,Vmax = 10m,Vmin = 10.66m,P = 0.52492618 d
Z UMiZ15h 02m 01.48s+83° 03′ 48.7″11.40CR CrB variable,Vmax = 10.8m,Vmin = 19.0m,P = 130 d
T UMiT11855613h 34m 41.12s+73° 25′ 53.0″11.46M6eMira variable,Vmax = 7.8m,Vmin = 15m,P = 301 d
SS UMiSS15h 51m 22.34s+71° 45′ 11.9″12.6CVSU UMa variable,Vmax = 12.6m,Vmin = 17.6m,P = 0.06778 d
WD 1337+7056657813h 38m 50.48s+70° 17′ 07.7″12.7785.14DA2.4white dwarf
H1504+6515h 02m 09.62s+66° 12′ 18.6″15.9DZ...possible pre-white-dwarf star
Calvera14h 12m 56.0s+79° 22′ 04″625pulsar
RW UMiRW16h 47m 54.75s+77° 02′ 12.2″DQ Her variable
WISE 1506+702715h 06m 49.89s+70° 27′ 36.2″11.1T6brown dwarf
Table legend:

 • Name =Proper name
 • B =Bayer designation
 • F or/and G. =Flamsteed designation orGould designation
 • Var =Variable star designation
 • HD =Henry Draper Catalogue designation number
 • HIP =Hipparcos Catalogue designation number
 • RA =Right ascension for theEpoch/Equinox J2000.0
 • Dec =Declination for the Epoch/Equinox J2000.0

 • vis. mag. = visual magnitude (m ormv), also known asapparent magnitude
 • abs. mag. =absolute magnitude (Mv)
 • Dist. (ly) = Distance inlight-years from Earth
 • Sp. class = Spectral class of the star in thestellar classification system
 • Notes = Common name(s) or alternate name(s); comments; notable properties [for example: multiple star status, range of variability if it is a variable star, exoplanets, etc.]

See also

[edit]

References

[edit]
  1. ^Seldom Gamma2 Ursae Minoris
  2. ^Designated asa Ursae Minoris by Flamsteed, A Ursae Minoris by Bode
  3. ^Designated asTau Ursae Minoris in Bode's Uranographia
  4. ^Designated asb Ursae Minoris by Flamsteed and Bode
  5. ^Designated asIota Ursae Minoris by Bode, also Gamma1 Ursae Minoris, both designations seldom used
  6. ^Designated asNu Ursae Minoris in Bode's Uranographia
  7. ^Designated asXi Ursae Minoris in Bode's Uranographia
  8. ^Designated asKappa Ursae Minoris in Bode's Uranographia
  9. ^Designated asSigma Ursae Minoris in Bode's Uranographia
  10. ^Designated asMu Ursae Minoris in Bode's Uranographia
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