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- SN_1885A abstract "SN 1885A (also S Andromedae) was a supernova in the Andromeda Galaxy, the only one seen in that galaxy so far by astronomers, and the first ever noted outside the Milky Way. It is also known as "Supernova 1885".It appears to have been seen first on August 17, 1885, by French astronomer Ludovic Gully during a public star gazing event, although Gully at that time thought it was scattered moonlight in his telescope and didnot follow up on this observation. Irish amateur astronomer Isaac Ward in Belfast claimed to have seen the object on August 19, 1885, but did not immediately publish its existence. The independent detection of the supernova by Ernst Hartwig at Dorpat (Tartu) Observatory in Estonia on August 20, 1885, however, was communicated in a telegram on August 31, 1885, once Hartwig hadverified in more ideal circumstances that the feature was not caused by reflected moonlight. The telegram prompted widespread observations of the event, and prompted Isaac Ward, Ludovic Gully, and several others to publish their earlier observations (the first reports on S And appeared before Hartwig's discovery letter which followed his telegram, since the letter was initially lost by Astronomische Nachrichten and only reprinted in a later issue). The history of the discovery is summarized by K.G. Jones and de Vaucouleurs and Corwin. Both studies doubt that Ward really saw the event since his estimated magnitude is significantly off from the later reconstructed lightcurve and conclude that Hartwig should be considered as the discoverer of the Supernova.SN 1885A reached magnitude 5.85 on 21 August 1885 and faded to magnitude 14 half a year later. The star was reported to be reddish in color and declined very rapidly in brightness, which is atypical for Type Ia supernovae. Some astronomers observed spectrum of the star visually (no photographic spectral observations were made in that times). These observations were made at the limit of visibility, but they are in good agreement with each other and with modern data on typical supernovae of Type Ia. It's a strong evidence for assignment of this star to this type.The location of the supernova event was 16″ from the relatively bright nucleus of the galaxy. This made detection of the supernova remnant difficult, and multiple attempts proved unsuccessful. Finally, in 1988, R. A. Fesen and others using the 4-meter Mayall telescope at Kitt Peak discovered the iron-rich remnant of the explosion. Further observations were made with the Hubble Space Telescope in 1999.The importance of observing the Andromeda S supernova is that, by comparing its magnitude to records of nearby supernovae, astronomers found it to be at least 750,000 light-years distant (later revised to 2,200,000); and that M31 was not a gas or dust cloud, but an "island universe" or galaxy[citation needed].".
- SN_1885A thumbnail Isaac_Ward.gif?width=300.
- SN_1885A wikiPageExternalLink AladinPreview?-c=00+42+43.11%2B41+16+04.2&ident=SN+1885A&submit=Aladin+previewer.
- SN_1885A wikiPageExternalLink sim-id?Ident=S+Andromedae.
- SN_1885A wikiPageExternalLink sand.html.
- SN_1885A wikiPageExternalLink m031_sAnd.html.
- SN_1885A wikiPageID "846432".
- SN_1885A wikiPageRevisionID "593065184".
- SN_1885A bV "+1.3 ~ +0.6".
- SN_1885A constellation Andromeda_(constellation).
- SN_1885A dec "+41° 16′ 04.2′′".
- SN_1885A discovery "--08-20".
- SN_1885A distance "2.6".
- SN_1885A epoch Epoch_(astronomy).
- SN_1885A gal "121.1702".
- SN_1885A host Andromeda_Galaxy.
- SN_1885A magV "+6".
- SN_1885A name "Supernova 1885".
- SN_1885A notes "First and only supernova".
- SN_1885A notes "first extragalactic supernova".
- SN_1885A notes "observed in Andromeda;".
- SN_1885A notes "observed".
- SN_1885A progenitor "Unknown".
- SN_1885A progenitorType "Unknown".
- SN_1885A ra "2563.11".
- SN_1885A snrtype "Unknown".
- SN_1885A type "Ia".
- SN_1885A subject Category:1885_in_science.
- SN_1885A subject Category:Andromeda_(constellation).
- SN_1885A subject Category:Andromeda_Galaxy.
- SN_1885A subject Category:HR_objects.
- SN_1885A subject Category:Objects_named_with_variable_star_designations.
- SN_1885A subject Category:Supernovae.
- SN_1885A type CelestialBody.
- SN_1885A type Star.
- SN_1885A type PhysicalBody.
- SN_1885A comment "SN 1885A (also S Andromedae) was a supernova in the Andromeda Galaxy, the only one seen in that galaxy so far by astronomers, and the first ever noted outside the Milky Way. It is also known as "Supernova 1885".It appears to have been seen first on August 17, 1885, by French astronomer Ludovic Gully during a public star gazing event, although Gully at that time thought it was scattered moonlight in his telescope and didnot follow up on this observation.".
- SN_1885A label "S Andromedae".
- SN_1885A label "S Andromedae".
- SN_1885A label "S Andromedae".
- SN_1885A label "S Andromedae".
- SN_1885A label "S Andromedae".
- SN_1885A label "S Андромеды".
- SN_1885A label "SN 1885A".
- SN_1885A label "SN 1885A".
- SN_1885A label "SN 1885A".
- SN_1885A label "SN 1885A".
- SN_1885A label "م أ 1885 إيه".
- SN_1885A label "アンドロメダ座S星".
- SN_1885A sameAs S_Andromedae.
- SN_1885A sameAs S_Andromedae.
- SN_1885A sameAs SN_1885A.
- SN_1885A sameAs S_Andromedae.
- SN_1885A sameAs アンドロメダ座S星.
- SN_1885A sameAs 안드로메다자리_S.
- SN_1885A sameAs SN_1885A.
- SN_1885A sameAs S_Andromedae.
- SN_1885A sameAs S_Andromedae.
- SN_1885A sameAs m.03gm1_.
- SN_1885A sameAs Q546708.
- SN_1885A sameAs Q546708.
- SN_1885A wasDerivedFrom SN_1885A?oldid=593065184.
- SN_1885A depiction Isaac_Ward.gif.
- SN_1885A isPrimaryTopicOf SN_1885A.
- SN_1885A name "Supernova 1885".