M81 & M82 Bode's Galaxies
Messier 81, also known as NGC 3031 or Bode's Galaxy, is a 7.0 magnitude bright spiral galaxy of Hubble type Sb in the constellation Ursa Major in the northern sky. The apparent size of M81 is 25′ by 12′, smaller than the full moon (apparent diameter about 30′). Compared to the Andromeda Nebula (M31), M81 appears noticeably smaller with about one-thirtieth of its area and is about four times farther away, approximately 12 million light-years.
The distance was determined to be around 12 million light-years through observations of Cepheid variables. Messier 81 has a diameter of 82,000 light-years and an estimated 200 billion stars, making it somewhat smaller than our Milky Way. The central black hole has a mass of about 70 million solar masses, roughly 15 times more massive than the black hole at the center of our galaxy/Milky Way.
Messier 82 (also known as NGC 3034, M82, or the "Cigar Galaxy") is a spiral galax...' role="button">
Michael Geissel
The distance was determined to be around 12 million light-years through observations of Cepheid variables. Messier 81 has a diameter of 82,000 light-years and an estimated 200 billion stars, making it somewhat smaller than our Milky Way. The central black hole has a mass of about 70 million solar masses, roughly 15 times more massive than the black hole at the center of our galaxy/Milky Way.
Messier 82 (also known as NGC 3034, M82, or the "Cigar Galaxy") is a spiral galax...' role="button">
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| Date | 03.03.2025 |
M81 & M82 Bode's GalaxiesM81 & M82 Bode's GalaxiesM81 & M82 Bodes Galaxien
Bode's Galaxies M81 & M82,Messier 81, also known as NGC 3031 or Bode's Galaxy, is a 7.0 magnitude bright spiral galaxy of Hubble type Sb in the constellation Ursa Major in the northern sky. The apparent size of M81 is 25′ by 12′, smaller than the full moon (apparent diameter about 30′). Compared to the Andromeda Nebula (M31), M81 appears noticeably smaller with about one-thirtieth of its area and is about four times farther away, approximately 12 million light-years.
The distance was determined to be around 12 million light-years through observations of Cepheid variables. Messier 81 has a diameter of 82,000 light-years and an estimated 200 billion stars, making it somewhat smaller than our Milky Way. The central black hole has a mass of about 70 million solar masses, roughly 15 times more massive than the black hole at the center of our galaxy/Milky Way.
Messier 82 (also known as NGC 3034, M82, or the "Cigar Galaxy") is a spiral galax...Bode's Galaxies M81 & M82,
Messier 81, also known as NGC 3031 or Bode's Galaxy, is a 7.0 magnitude bright spiral galaxy of Hubble type Sb in the constellation Ursa Major in the northern sky. The apparent size of M81 is 25′ by 12′, smaller than the full moon (apparent diameter about 30′). Compared to the Andromeda Nebula (M31), M81 appears noticeably smaller with about one-thirtieth of its area and is about four times farther away, approximately 12 million light-years.
The distance was determined to be around 12 million light-years through observations of Cepheid variables. Messier 81 has a diameter of 82,000 light-years and an estimated 200 billion stars, making it somewhat smaller than our Milky Way. The central black hole has a mass of about 70 million solar masses, roughly 15 times more massive than the black hole at the center of our galaxy/Milky Way.
Messier 82 (also known as NGC 3034, M82, or the "Cigar Galaxy") is a spiral galax...Bodes Galaxien M81 & M82,
Messier 81, auch als NGC 3031 oder Bodes Galaxie bekannt, ist eine 7,0 mag helle Spiralgalaxie vom Hubble-Typ Sb im Sternbild Großer Bär am Nordsternhimmel. Die scheinbare Fläche von M81 beträgt mit 25′ mal 12′ weniger als der Vollmond (scheinbarer Durchmesser rund 30′). Verglichen mit dem Andromedanebel (M31) erscheint M81 mit etwa einem Dreißigstel von dessen Fläche merklich kleiner und ist etwa viermal weiter entfernt, rund 12 Millionen Lichtjahre.
Die Entfernung wurde durch die Beobachtung von Cepheiden zu rund 12 Millionen Lichtjahren bestimmt. Messier 81 ist mit einem Durchmesser von 82.000 Lichtjahren und schätzungsweise 200 Milliarden Sternen etwas kleiner als unsere Milchstraße. Das zentrale Schwarze Loch hat eine Masse von rund 70 Millionen Sonnenmassen und ist damit etwa 15-mal massereicher als das Schwarze Loch im Zentrum unserer Galaxis / Milchstraße.
Messier 82 (auch als NGC 3034, M82 oder „Zigarrengalaxie“ bezeichnet) ist eine Spiralgalax