How many stars: -- Constellation: CAS

Constellation:

Original 1875 boundaries:
(225200,+5230) TO (225200,+5615) TO (225200,+5905) TO (231000,+5905) TO (231000,+6300)
 TO (233500,+6300) TO (233500,+6600) TO (002000,+6600) TO (002000,+7700) TO (032500,+7700)
 TO (032500,+6800) TO (030600,+6800) TO (030600,+5700) TO (022600,+5700) TO (022600,+5830)
 TO (015430,+5830) TO (015430,+5730) TO (014200,+5730) TO (014200,+5400) TO (012200,+5400)
 TO (012200,+5000) TO (010700,+5000) TO (010700,+4800) TO (005200,+4800) TO (005200,+4600)
 TO (001000,+4600) TO (001000,+4800) TO (233500,+4800) TO (233500,+5000) TO (232000,+5000)
 TO (232000,+5230)

Star Details:

Name Mag mult Info motion LY Pos
Spectral type B0IV:evar gamma Cas 2.15Known variable star Multiple star Variable, unusual type, range 1.6-3.0v.
Multiple star BU 1028: mag 2.2 and 10.9, 2.3" PA 252 (1961). B0IVe. CPM. Relfix.
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25, -3, -7 Over 500 light years away612 005642.5 +604300
Spectral type K0IIIva alpha Cas 2.24Known variable star Multiple star Common name: Schedar. Considered variable for a long time, now marked "constant" by GCVS, with <0.07 mag range.
Multiple star BU 1349: mag 2.5 and 14.0, 19.8" PA 275 (1934). K0IIIa. Dist+.
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50, -32, -4 101 to 250 light years away228 004030.4 +563214
Spectral type F2IV beta Cas 2.28Known variable star Multiple star Common name: Caph. beta Cas is a delta Scuti type variable with a range of 0.04 mag. It's also a multiple star.
Multiple star AGC 15: mag 2.4 and 13.7, 31.2" PA 244 (1935). F2III-IV
Proper motion > 0.2 arcsecond per year523, -180, 11 Just 26 to 100 light years away54 000910.7 +590859
Spectral type A5Vv SB delta Cas 2.66 Multiple star Names: Ruchbah; Rucba; Rucha; also Ksora in Becvar. Eclipsing var? range 2.68 - 2.76V, 759 days.
Multiple star BUP 19: mag 2.7 and 11.5, 131.7" PA 66 (1925). A5III-IVv
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Proper motion > 0.2 arcsecond per year297, -49, 7 Just 26 to 100 light years away99 012549.0 +601407
Spectral type B2pvar epsilon Cas 3.35Suspected variable star   NAMES: Called Segin in Becvar; Allen gives Ruchbah, a name more commonly applied to HR 403. Spectrum:Helium weak. Shell star. Usually classified B3Vp.
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31, -18, -8 251 to 500 light years away441 015423.7 +634012
Spectral type G0V SBSpectroscopic binary eta Cas 3.46Known variable star Multiple star Common name: Achird. Multiple star. AB are binary with about a 480 year period, possible 40 year companion. C through H are optical only. A is possibly a spectroscopic binary.
Multiple star STF 60: mag 3.5 and 7.4, 12.9" PA 319 (2005). G0V dM0
Proper motion > 1 arcsecond per year1087, -559, 10 Less than 25 light years away19 004906.3 +574855
Spectral type B2IV zeta Cas 3.69Suspected variable star   Suspected variable NSV 225, range 3.59 - 3.68V.
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17, -9, 2 Over 500 light years away597 003658.3 +535349
Spectral type A2V 50 Cas 3.95   No comments. -44, 22, -14 101 to 250 light years away162 020326.1 +722517
Spectral type B1IaSpectroscopic binary kappa Cas 4.17   An emission-line star. Member of Cas OB14. A spectroscopic binary with a period of 0.14035d, strongly modulated. An Alpha Cygni type variable, range, 4.22 - 4.30B, 0.09028d.
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3, -2, -2 >1500 003260.0 +625554
Spectral type A7VvarSpectroscopic binary theta Cas 4.34Suspected variable star Multiple star Hyades moving group. Name: Marfak. Name shared with HR 321. Spectroscopic binary - unresolved. Delta Scuti type var?
Multiple star STT 553: mag 4.3 and 11.3, 130.4" PA 141 (1999). A7V
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Proper motion > 0.2 arcsecond per year226, -19, 9 101 to 250 light years away137 011106.2 +550860

10 stars shown. View all.

Multiple stars:

Star Pair ID Sep PA Year Mags Notes
HR 9094 AB STF3053 15" 70 2003 6.0 - 7.2 G9III+A1V. CPM. Fine color contrast.
HR 9094 AC STF3053 98.5" 290 1999 6.0 - 11.0 Optical. Relfix.
9 Cas AB H 5 79 82.4" 331 1999 5.9 - 11.0 A1III. Dist+, PA+.
9 Cas AC SMY 5 150.6" 238 1999 5.9 - 12.0 A1III. Relfix.
9 Cas AD S 838 246.4" 196 1991 5.9 - 8.2 A1III. Relfix.
HR 5 AB STF3062 1.6" 336 2004 6.4 - 7.3 G3V
beta Cas AB AGC 15 31.2" 244 1935 2.4 - 13.7 F2III-IV
beta Cas AC AGC 15 287" 325 1879 2.4 - 0.0 F2III-IV
HR 60 AB BU 392 19.3" 70 1999 5.7 - 12.5 G4II. Relfix.
HR 91 AB HU 506 0.1" 66 1996 6.0 - 6.8 B5IV

10 pairs shown. View all.

Variable stars:

Variable Mags Range Period Type Notes
SU Cas 5.7 - 6.2 V 0.5 1.94932 DCEPS, Cepheid variable F5Ib-II-F7Ib-II.

10 variables shown. View all.

Deep sky objects:

Image Name Type Mag Info size Pos

DSS2, scale 15'
NGC 457 OC 6.4 V   13' 011940 +5817.3

DSS2, scale 30'
IC 1805 C+N 6.5 V   60' 023242 +612700

DSS2, scale 30'
IC 1848 C+N 6.5 V   60' 024921.0 +603803

DSS2, scale 6'
NGC 654 OC 6.5 V   5' 0144.0 +6153

DSS2, scale 6'
NGC 129 OC 6.5 V Proper motion -0.5, +0.1 mas/yr. Contains variable DL Cas. 1600 parsecs away. Brightest member star is magnitude 11. Age 150,000,000 years 21' 003000 +601300

DSS2, scale 15'
NGC 1027 OC 6.7 V   20' 0242.6 +6138

DSS2, scale 6'
NGC 225 OC 7.0 V Distance: 630 parsecs. Age: 140My. Stars mag 9 to 10. Brightest star m9.3. Proper motion -5.5, 0.7 mas/yr. 12' 004342 +614700

DSS2, scale 6'
NGC 281 C+N 7.0 p A cluster of stars in an ionized HII region about 35x30' across. Triple star on NP edge. 35' 005225.1 +563354

DSS2, scale 15'
NGC 663 OC 7.1 V   15' 014612 +611400

DSS2, scale 6'
NGC 581 OC 7.4 V   6' 0133.4 +6039

10 objects shown. View all.

Notes on data shown (stars):

CREDITS & references