Omega² Cygni

{{#if:\|{{{Typ}}}\|Doppelstern}}; {{#if:ω2 Cygni\|ω2 Cygni\|Omega2 Cygni}}
	{{#ifexist:Media:\|[[Datei:\|310px\|zentriert\|alt=\|]]\|}}
	Vorlage:Sternkarte
Beobachtungsdaten; Äquinoktium: J2000.0, Epoche: J2000.0
	Vorlage:AladinLite
Rektaszension	{{#if:20/31/18.8\|Vorlage:RektaszensionEasy \| }}
Deklination	{{#if:+/49/13/13\|Vorlage:DeklinationEasy \| }}
Scheinbare Helligkeit	5,44 mag
Bekannte Exoplaneten	{{{Planeten}}}
	Position des Begleiters {{#if:\| ()}}
Winkelabstand	{{{Winkelabstand}}}
Positionswinkel	{{{Positionswinkel}}}
Astrometrie
Radialgeschwindigkeit	km/s
Parallaxe	mas
Entfernung	{{#if:500\|500 Lj{{#if:\|; ( pc)}}\| pc}}
Absolute visuelle Helligkeit Mvis	mag
Absolute bolometrische Helligkeit Mbol	mag
	Veralteter Parameter "Absolut" !
Eigenbewegung
Rektaszensionsanteil:	mas/a
Deklinationsanteil:	mas/a
Orbit
Periode
Große Halbachse
Exzentrizität
Periastron
Apastron
Bahnneigung
Argument des Knotens
Epoche des Periastrons
Argument der Periapsis
Einzeldaten
Namen	{{#if:A\|A\|A}}; {{#if:B\|B\|B}}
	Beobachtungsdaten }}
B\|B}}	}}
B\|B}}	}}
B\|B}}	{{#if:6,6\|6,6 mag}} }}
	Spektrum und Indices }}
A\|A}}	M2III

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(G-Band) | {{#if:A|A|A}} | style="white-space:nowrap;" | {{#if:| mag}} |- | {{#if:B|B|B}} | style="white-space:nowrap;" | {{#if:| mag}} }} |- {{#if:| | rowspan=2 style="vertical-align:middle" | rel. Helligkeit
(J-Band) | {{#if:A|A|A}} | style="white-space:nowrap;" | {{#if:| mag}} |- | {{#if:B|B|B}} | style="white-space:nowrap;" | {{#if:| mag}} }} |- {{#if:| | rowspan=2 style="vertical-align:middle" | Absolute vis.
Helligkeit M_vis | {{#if:A|A|A}} | style="white-space:nowrap;" | {{#if:| mag}} |- | {{#if:B|B|B}} | style="white-space:nowrap;" | {{#if:| mag}} }} |- {{#if:| | rowspan=2 style="vertical-align:middle" | Absolute bol.
Helligkeit M_bol | {{#if:A|A|A}} | style="white-space:nowrap;" | {{#if:| mag}} |- | {{#if:B|B|B}} | style="white-space:nowrap;" | {{#if:| mag}} }} |- {{#if:| | rowspan=2 style="vertical-align:middle" | Masse | {{#if:A|A|A}} | style="white-space:nowrap;" | {{#if:| M_☉}} |- | {{#if:B|B|B}} | style="white-space:nowrap;" | {{#if:| M_☉}} }} |- {{#if:| | rowspan=2 style="vertical-align:middle" | Radius | {{#if:A|A|A}} | style="white-space:nowrap;" | {{#if:| R_☉}} |- | {{#if:B|B|B}} | style="white-space:nowrap;" | {{#if:| R_☉}} }} |- {{#if:| | rowspan=2 style="vertical-align:middle" | Leuchtkraft | {{#if:A|A|A}} | style="white-space:nowrap;" | {{#if:| L_☉}} |- | {{#if:B|B|B}} | style="white-space:nowrap;" | {{#if:| L_☉}} }} |- {{#if:| | rowspan=2 style="vertical-align:middle" | Effektive Temperatur | {{#if:A|A|A}} | style="white-space:nowrap;" | {{#if:| K}} |- | {{#if:B|B|B}} | style="white-space:nowrap;" | {{#if:| K}} }} |- {{#if:| | rowspan=2 style="vertical-align:middle" | Metallizität [Fe/H] | {{#if:A|A|A}} | style="white-space:nowrap;" | |- | {{#if:B|B|B}} | style="white-space:nowrap;" | }} |- {{#if:| | rowspan=2 style="vertical-align:middle" | Rotationsdauer | {{#if:A|A|A}} | style="white-space:nowrap;" | {{#if:| d}} |- | {{#if:B|B|B}} | style="white-space:nowrap;" | {{#if:| d}} }} |- {{#if:| | Alter | colspan="2" style="white-space:nowrap;" | }} |- {{#if:| | rowspan=2 style="vertical-align:middle" | Alter | {{#if:A|A|A}} | style="white-space:nowrap;" | a |- | {{#if:B|B|B}} | style="white-space:nowrap;" | a }} |- {{#if: ω² Cygni46 Cygni+48 3154785119577410124349741 | ! colspan="3" class="ibheader" | Andere Bezeichnungen und Katalogeinträge |-

| colspan="3" style="padding:0;" |

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Katalog	{{#if:A\|A\|A}}	{{#if:B\|B\|B}}
Bayer-Bezeichnung	ω² Cygni
Flamsteed-Bezeichnung	46 Cygni
Bonner Durchmusterung	BD +48 3154
Córdoba-Durchmusterung	CD {{{CD}}}
Gliese-Katalog	GJ {{{GJ}}} {{#ifeq:{{#iferror:{{#expr: 1 * {{{GJ}}}}}\|???\|[1]}}\|???\|{{#if:\|\|}}\|{{#iferror:{{#expr: 1 * {{{GJ}}}}}\|???\|[2]}}}}
Bright-Star-Katalog	HR 7851 {{#ifeq:{{#iferror:{{#expr: 1 * 7851}}\|???\|{{#ifexpr:7851 <> (floor 7851) or 7851 < 1 or 7851 > 9110 \|???\|[3]}}}}\|???\|{{#if:\|\|}}\|{{#iferror:{{#expr: 1 * 7851}}\|???\|{{#ifexpr:7851 <> (floor 7851) or 7851 < 1 or 7851 > 9110 \|???\|[4]}}}}}}
Henry-Draper-Katalog	HD 195774 {{#ifeq:{{#iferror:{{#expr: 1 * 195774}}\|???\|{{#ifexpr:195774 <> (floor 195774) or 195774 < 1 or 195774 > 359083\|???\|{{#ifexpr: 195774 >= 1 and 195774 <= 272150\|[5]\|[6]}}}}}}\|???\|{{#if:\|\|}}\|{{#iferror:{{#expr: 1 * 195774}}\|???\|{{#ifexpr:195774 <> (floor 195774) or 195774 < 1 or 195774 > 359083\|???\|{{#ifexpr: 195774 >= 1 and 195774 <= 272150\|[7]\|[8]}}}}}}}}
SAO-Katalog	SAO 49741 {{#ifeq:{{#iferror:{{#expr: 1 * 49741}}\|???\|{{#ifexpr:49741 <> (floor 49741) or 49741 < 1 or 49741 > 258997 \|???\|[9]}}}}\|???\|{{#if:\|\|}}\|{{#iferror:{{#expr: 1 * 49741}}\|???\|{{#ifexpr:49741 <> (floor 49741) or 49741 < 1 or 49741 > 258997 \|???\|[10]}}}}}}
Tycho-Katalog	TYC {{#iferror:{{#expr: {{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+1}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+1}}}} }}{{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+2}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+2}}}} }}{{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+3}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+3}}}} }}}}\|{{#if:\|\|}}\|{{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+1}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+1}}}} }}-{{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+2}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+2}}}} }}-{{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+3}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+3}}}} }}[https://cdsarc.u-strasbg.fr/viz-bin/VizieR-5?-source=I/259&-out.all&-out.max=100&TYC1={{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+1}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+1}}}} }}&TYC2={{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+2}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+2}}}} }}&TYC3={{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+3}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+3}}}} }}]}}
Hipparcos-Katalog	HIP 101243 {{#ifeq:{{#iferror:{{#expr: 1 * 101243}}\|???\|{{#ifexpr:101243 <> (floor 101243) or 101243 < 1 or 101243 > 258997 \|???\|[11]}}}}\|???\|{{#if:\|\|}}\|{{#iferror:{{#expr: 1 * 101243}}\|???\|{{#ifexpr:101243 <> (floor 101243) or 101243 < 1 or 101243 > 258997 \|???\|[12]}}}}}}
New General Catalogue	NGC
Bonner Durchmusterung	BD	BD
Córdoba-Durchmusterung	CD	CD
Gliese-Katalog	GJ {{#ifeq:{{#iferror:{{#expr: 1 * {{{GJ1}}}}}\|???\|[13]}}\|???\|{{#if:\|\|}}\|{{#iferror:{{#expr: 1 * {{{GJ1}}}}}\|???\|[14]}}}}	GJ {{#ifeq:{{#iferror:{{#expr: 1 * {{{GJ2}}}}}\|???\|[15]}}\|???\|{{#if:\|\|}}\|{{#iferror:{{#expr: 1 * {{{GJ2}}}}}\|???\|[16]}}}}
Bright-Star-Katalog	HR {{#ifeq:{{#iferror:{{#expr: 1 * {{{HR1}}}}}\|???\|{{#ifexpr:{{{HR1}}} <> (floor {{{HR1}}}) or {{{HR1}}} < 1 or {{{HR1}}} > 9110 \|???\|[17]}}}}\|???\|{{#if:\|\|}}\|{{#iferror:{{#expr: 1 * {{{HR1}}}}}\|???\|{{#ifexpr:{{{HR1}}} <> (floor {{{HR1}}}) or {{{HR1}}} < 1 or {{{HR1}}} > 9110 \|???\|[18]}}}}}}	HR {{#ifeq:{{#iferror:{{#expr: 1 * {{{HR2}}}}}\|???\|{{#ifexpr:{{{HR2}}} <> (floor {{{HR2}}}) or {{{HR2}}} < 1 or {{{HR2}}} > 9110 \|???\|[19]}}}}\|???\|{{#if:\|\|}}\|{{#iferror:{{#expr: 1 * {{{HR2}}}}}\|???\|{{#ifexpr:{{{HR2}}} <> (floor {{{HR2}}}) or {{{HR2}}} < 1 or {{{HR2}}} > 9110 \|???\|[20]}}}}}}
Henry-Draper-Katalog	HD {{#ifeq:{{#iferror:{{#expr: 1 * {{{HD1}}}}}\|???\|{{#ifexpr:{{{HD1}}} <> (floor {{{HD1}}}) or {{{HD1}}} < 1 or {{{HD1}}} > 359083\|???\|{{#ifexpr: {{{HD1}}} >= 1 and {{{HD1}}} <= 272150\|[21]\|[22]}}}}}}\|???\|{{#if:\|\|}}\|{{#iferror:{{#expr: 1 * {{{HD1}}}}}\|???\|{{#ifexpr:{{{HD1}}} <> (floor {{{HD1}}}) or {{{HD1}}} < 1 or {{{HD1}}} > 359083\|???\|{{#ifexpr: {{{HD1}}} >= 1 and {{{HD1}}} <= 272150\|[23]\|[24]}}}}}}}}	HD {{#ifeq:{{#iferror:{{#expr: 1 * {{{HD2}}}}}\|???\|{{#ifexpr:{{{HD2}}} <> (floor {{{HD2}}}) or {{{HD2}}} < 1 or {{{HD2}}} > 359083\|???\|{{#ifexpr: {{{HD2}}} >= 1 and {{{HD2}}} <= 272150\|[25]\|[26]}}}}}}\|???\|{{#if:\|\|}}\|{{#iferror:{{#expr: 1 * {{{HD2}}}}}\|???\|{{#ifexpr:{{{HD2}}} <> (floor {{{HD2}}}) or {{{HD2}}} < 1 or {{{HD2}}} > 359083\|???\|{{#ifexpr: {{{HD2}}} >= 1 and {{{HD2}}} <= 272150\|[27]\|[28]}}}}}}}}
SAO-Katalog	SAO {{#ifeq:{{#iferror:{{#expr: 1 * {{{SAO1}}}}}\|???\|{{#ifexpr:{{{SAO1}}} <> (floor {{{SAO1}}}) or {{{SAO1}}} < 1 or {{{SAO1}}} > 258997 \|???\|[29]}}}}\|???\|{{#if:\|\|}}\|{{#iferror:{{#expr: 1 * {{{SAO1}}}}}\|???\|{{#ifexpr:{{{SAO1}}} <> (floor {{{SAO1}}}) or {{{SAO1}}} < 1 or {{{SAO1}}} > 258997 \|???\|[30]}}}}}}	SAO {{#ifeq:{{#iferror:{{#expr: 1 * {{{SAO2}}}}}\|???\|{{#ifexpr:{{{SAO2}}} <> (floor {{{SAO2}}}) or {{{SAO2}}} < 1 or {{{SAO2}}} > 258997 \|???\|[31]}}}}\|???\|{{#if:\|\|}}\|{{#iferror:{{#expr: 1 * {{{SAO2}}}}}\|???\|{{#ifexpr:{{{SAO2}}} <> (floor {{{SAO2}}}) or {{{SAO2}}} < 1 or {{{SAO2}}} > 258997 \|???\|[32]}}}}}}
Tycho-Katalog	TYC Vorlage:Str replace[https://cdsarc.u-strasbg.fr/viz-bin/VizieR-5?-source=I/259&-out.all&-out.max=100&TYC1={{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+1}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+1}}}} }}&TYC2={{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+2}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+2}}}} }}&TYC3={{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+3}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+3}}}} }}]	TYC Vorlage:Str replace[https://cdsarc.u-strasbg.fr/viz-bin/VizieR-5?-source=I/259&-out.all&-out.max=100&TYC1={{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+1}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+1}}}} }}&TYC2={{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+2}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+2}}}} }}&TYC3={{#ifeq:/Vorlage:Str replace \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+3}}}} \| \|{{#titleparts:/Vorlage:Str replace\|1\|{{#expr:1+3}}}} }}]
Hipparcos-Katalog	HIP	HIP
WDS-Katalog	WDS 20313+4913
Weitere Bezeichnungen:

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ω² Cygni (Omega² Cygni) ist ein 500 Lichtjahre von der Sonne entfernter Doppelstern im Sternbild Schwan, bestehend aus einem +5,44^m hellen Hauptstern der Spektralklasse M2 und einem +6,6^m hellem Begleitstern der Spektralklasse A0. Der Begleitstern befindet sich bei einem Positionswinkel von 265 Grad 256" vom Hauptstern entfernt. Er kann schon im kleinen Prismenfernglas oder Opernglas gesehen werden. Wegen des Farbkontrastes (roter Hauptstern und blauer Begleiter) ist ω² Cygni ein schönes Objekt für Amateurastronomen. Der Stern wird auch als Rukbat / Ruchbah / Ruchba (arabisch{{#if:ركبة| {{#invoke:Vorlage:lang|fold}}{{#if:| {{#invoke:Vorlage:lang|flat}}}}{{#if:Rukbah|, DMG {{#invoke:Vorlage:lang|flat}}}}{{#if:| <templatestyles src="IPA/styles.css" />{{#if:|[}}{{#if:

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