45 Orionis

This is the list of notable stars in the constellation Orion, sorted by decreasing brightness.

Zdroj:https://en.wikipedia.org?pojem=45_Orionis
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Text je dostupný za podmienok Creative Commons Attribution/Share-Alike License 3.0 Unported; prípadne za ďalších podmienok.
Podrobnejšie informácie nájdete na stránke Podmienky použitia.

Name	B	F	Var	HD	HIP	RA	Dec	vis. mag.	abs. mag.	Dist. (ly)	Sp. class	Notes
Rigel	β	19		34085	24436	05^h 14^m 32.27^s	−08° 12′ 05.9″	0.18	−6.69	773	B8Ia + B9V + B9V	7th brightest star, triple star system; α Cyg variable
Betelgeuse	α	58		39801	27989	05^h 55^m 10.29^s	+07° 24′ 25.3″	0.42	−6.02	643	M2Ib	9th brightest star on average, semiregular variable, V_max = 0^m, V_min = 1.3^m, P = 2335 d
Bellatrix	γ	24		35468	25336	05^h 25^m 07.87^s	+06° 20′ 59.0″	1.64	−2.72	243	B2III	suspected variable
Alnilam	ε	46		37128	26311	05^h 36^m 12.81^s	−01° 12′ 06.9″	1.69	−6.38	1342	B0Ia	α Cyg variable, α Cyg variable, V_max = 1.64^m, V_min = 1.74^m
Alnitak A	ζ	50		37742	26727	05^h 40^m 45.52^s	−01° 56′ 33.3″	1.88	-6.0	817	O9.7Ib	component of the Alnitak system; suspected variable
Saiph	κ	53		38771	27366	05^h 47^m 45.39^s	−09° 40′ 10.6″	2.07	−4.65	721	B0.5Ia	suspected variable
Mintaka AB	δ	34		36486	25930	05^h 32^m 00.40^s	−00° 17′ 56.7″	2.20	-5.8	916	B0III+O9V	component of the Mintaka system; Algol variable, V_max = 2.20^m, V_min = 2.32^m, P = 5.73 d
ι Ori	ι	44		37043	26241	05^h 35^m 25.98^s	−05° 54′ 35.6″	2.75	−5.30	1325	O9III	Hatysa
π³ Ori	π³	1		30652	22449	04^h 49^m 50.14^s	+06° 57′ 40.5″	3.19	-3.67	26	F6V	Tabit; suspected variable
η Ori	η	28		35411	25281	05^h 24^m 28.62^s	−02° 23′ 49.7″	3.35	−3.86	901	B1V + B2	Saif al Jabbar, Saiph; β Cep variable, V_max = 3.31^m, V_min = 3.6^m, P = 7.99 d
Meissa A	λ	39		36861	26207	05^h 35^m 08.28^s	+09° 56′ 03.0″	3.47	-4.25	1055	O8III	component of the Meissa system; suspected variable
τ Ori	τ	20		34503	24674	05^h 17^m 36.40^s	−06° 50′ 39.8″	3.59	−2.56	554	B5III
π⁴ Ori	π⁴	3		30836	22549	04^h 51^m 12.37^s	+05° 36′ 18.4″	3.68	−4.25	1259	B2III	variable star, ΔV = 0.003^m, P = 1.60 d
Alnitak B	ζ	50		37743	26727	05^h 40^m 45.60^s	−01° 56′ 34.0″	3.70	-3.29	817	B0III+B1IV	component of the Alnitak system
π⁵ Ori	π⁵	8		31237	22797	04^h 54^m 15.10^s	+02° 26′ 26.4″	3.71	−4.36	1342	B2III	rotating ellipsoidal variable, V_max = 3.66^m, V_min = 3.73^m, P = 3.70 d
σ Ori AB	σ	48		37468	26549	05^h 38^m 44.77^s	−02° 36′ 00.2″	3.77	−3.96	1148	O9.5V	component of the σ Ori system; spectroscopic binary; suspected variable
ο² Ori	ο²	9		31421	22957	04^h 56^m 22.32^s	+13° 30′ 52.5″	4.06	0.48	169	K2III
φ² Ori	φ²	40		37160	26366	05^h 36^m 54.33^s	+09° 17′ 29.1″	4.09	1.33	116	G8III-IV
μ Ori	μ	61		40932	28614	06^h 02^m 22.99^s	+09° 38′ 50.5″	4.12	0.78	152	Am...	suspected eclipsing binary
29 Ori	e	29		35369	25247	05^h 23^m 56.84^s	−07° 48′ 28.6″	4.13	0.49	174	G8III
32 Ori	A	32		36267	25813	05^h 30^m 47.05^s	+05° 56′ 53.6″	4.20	−0.53	288	B5V
π² Ori	π²	2		30739	22509	04^h 50^m 36.72^s	+08° 54′ 00.9″	4.35	0.48	194	A1Vn
φ¹ Ori	φ¹	37		36822	26176	05^h 34^m 49.24^s	+09° 29′ 22.5″	4.39	−3.01	985	B0IV...
χ¹ Ori	χ¹	54		39587	27913	05^h 54^m 23.08^s	+20° 16′ 35.1″	4.39	4.67	28	G0V	RS CVn variable, V_max = 4.38^m, V_min = 4.41^m
ν Ori	ν	67		41753	29038	06^h 07^m 34.32^s	+14° 46′ 06.7″	4.42	−1.65	534	B3IV	variable star, ΔV = 0.008^m, P = 1.04 d
ξ Ori	ξ	70		42560	29426	06^h 11^m 56.40^s	+14° 12′ 31.7″	4.45	−2.00	634	B3IV
ρ Ori	ρ	17		33856	24331	05^h 13^m 17.48^s	+02° 51′ 40.5″	4.46	−0.65	344	K3III...	suspected variable
π⁶ Ori	π⁶	10		31767	23123	04^h 58^m 32.90^s	+01° 42′ 50.5″	4.47	−2.86	953	K2IIvar	suspected variable
ω Ori	ω	47		37490	26594	05^h 39^m 11.15^s	+04° 07′ 17.3″	4.50	−3.98	1622	B3IIIe	γ Cas variable, V_max = 4.4^m, V_min = 4.59^m
HD 40657				40657	28413	06^h 00^m 03.35^s	−03° 04′ 26.7″	4.53	−1.02	420	K2IIIvar	suspected variable
42 Ori	c	42		37018	26237	05^h 35^m 23.16^s	−04° 50′ 18.0″	4.58	−2.33	786	B2III...	suspected variable
ψ² Ori	ψ²	30		35715	25473	05^h 26^m 50.23^s	+03° 05′ 44.4″	4.59	−3.60	1417	B2IV	ellipsoidal variable and possible eclipsing binary, V_max = 4.55^m, V_min = 4.61^m, P = 2.53 d
υ Ori	υ	36		36512	25923	05^h 31^m 55.86^s	−07° 18′ 05.5″	4.62	−3.76	1545	B0V	Thabit; suspected β Cep variable
π¹ Ori	π¹	7		31295	22845	04^h 54^m 53.70^s	+10° 09′ 04.1″	4.64	1.80	121	A0V
χ² Ori	χ²	62		41117	28716	06^h 03^m 55.18^s	+20° 08′ 18.5″	4.64	-7.6	1801	B2Ia	α Cyg variable
11 Ori		11	V1032	32549	23607	05^h 04^m 34.14^s	+15° 24′ 15.1″	4.65	−0.79	400	A0p Si	α² CVn variable, V_max = 4.65^m, V_min = 4.69^m, P = 4.64 d
ο¹ Ori	ο¹	4		30959	22667	04^h 52^m 31.96^s	+14° 15′ 02.8″	4.71	−1.39	542	M3Sv	semiregular variable, V_max = 4.65^m, V_min = 4.88^m, P = 30 d
31 Ori		31	CI	36167	25737	05^h 29^m 43.98^s	−01° 05′ 31.8″	4.71	−1.02	456	K5III	semiregular variable, V_max = 4.68^m, V_min = 4.72^m, P = 141 d
22 Ori	o	22		35039	25044	05^h 21^m 45.75^s	−00° 22′ 56.9″	4.72	−3.26	1289	B2IV-V	suspected β Cep variable
56 Ori		56		39400	27750	05^h 52^m 26.44^s	+01° 51′ 18.6″	4.76	−2.91	1113	K2IIvar	suspected variable
49 Ori	d	49		37507	26563	05^h 38^m 53.09^s	−07° 12′ 45.8″	4.77	1.41	153	A4V
HD 36960				36960	26199	05^h 35^m 02.68^s	−06° 00′ 07.3″	4.78	−4.00	1863	B0.5V	suspected variable
15 Ori		15		33276	24010	05^h 09^m 41.96^s	+15° 35′ 50.2″	4.81	−0.14	318	F2IV
ψ¹ Ori	ψ¹	25	V1086	35439	25302	05^h 24^m 44.83^s	+01° 50′ 47.2″	4.89	−2.77	1109	B1V:pe	γ Cas variable, V_max = 4.76^m, V_min = 4.96^m
51 Ori	b	51		37984	26885	05^h 42^m 28.66^s	+01° 28′ 28.8″	4.90	0.07	302	K1III
HD 44131				44131	30093	06^h 19^m 59.60^s	−02° 56′ 40.2″	4.91	−1.05	506	M1III	variable star, ΔV = 0.011^m, P = 8.92 d
HD 37756				37756	26736	05^h 40^m 50.72^s	−01° 07′ 43.6″	4.95	−4.08	2090	B2IV-V	suspected eclipsing binary
69 Ori	f¹	69		42545	29434	06^h 12^m 03.28^s	+16° 07′ 49.6″	4.95	−1.93	774	B5Vn
θ² Ori A	θ²	43		37041	26235	05^h 35^m 22.90^s	−05° 24′ 57.8″	4.98	−3.84	1895	O9.5Vpe	component of the θ² Ori system; suspected variable
23 Ori	m	23		35149	25142	05^h 22^m 50.00^s	+03° 32′ 40.0″	5.00	−2.35	962	B1V	suspected variable
74 Ori	k	74		43386	29800	06^h 16^m 26.57^s	+12° 16′ 18.2″	5.04	3.58	64	F5IV-V
27 Ori	p	27		35410	25282	05^h 24^m 28.91^s	−00° 53′ 30.0″	5.07	1.46	172	K0III	suspected variable
θ¹ Ori C	θ¹ C	41		37022	26221	05^h 35^m 16.47^s	−05° 23′ 22.9″	5.13	-4.9	1600	O6Vpe	component of the Trapezium; triple star system; suspected variable
64 Ori		64		41040	28691	06^h 03^m 27.36^s	+19° 41′ 26.2″	5.14	−2.44	1069	B8V	suspected variable
6 Ori	g	6		31283	22833	04^h 54^m 46.91^s	+11° 25′ 33.5″	5.18	0.84	241	A3V	suspected variable
HD 33554				33554	24197	05^h 11^m 41.56^s	+16° 02′ 44.4″	5.18	0.21	321	K5III
71 Ori		71		43042	29650	06^h 14^m 50.94^s	+19° 09′ 24.8″	5.20	3.58	69	F6V