Deep Sky Object
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Deep Sky Object NGC 1407 (GX) Eridanus ra: 03h 12m 12.0s dec: -18° 34’ 45” Magnitude (visual) = 9.7 Size = 4.6’ x 4.3’ Position angle = 35° Description: NGC 1407 is an elliptical galaxy that is part of a group of galaxies in the constellation of Eridanus sometimes called the Eridanus Cloud. It is a loose grouping of galaxies at a mean distance of approximately 75 million light years. Redshift values show that there are approximately 200 galaxies associated with the group, approximately 70% of which are spiral and irregular type galaxies while the remaining 30% are elliptical and lenticular types. Source: www.jwinman.com/starcharts/NGC%1407%20chart.htm AL: Herschel 400 Challenge Object NGC 1501 (PN) Camelopardalis ra: 04h 06m 59.6s dec: +60° 55’ 11” Magnitude (visual) = 11.5 Size = 52” Description: NGC 1501 is a planetary nebula with an irregular disk in the constellation of Camelopardalis. William Herschel discovered it in 1787. F. Sabbadin estimated its distance to be roughly 4,890 light years. Source: http://www.kopernik.org/images/archive/n1501.htm AL: Herschel 400, Planetary Nebula Binocular Object NGC 457 (OC) Cassiopeia ra: 01h 19m 33.0s dec: +58° 17’ 00” Magnitude (visual) = 6.4 Size = 20’ Description: NGC 457 (also known as the Owl Cluster, the ET Cluster, or Caldwell 13) is an open star cluster in the constellation Cassiopeia. It was discovered by William Herschelin 1787,[2] and lies over 7,900 light years away from the Sun. It has an estimated age of 21 million years.[1] The cluster is sometimes referred by amateur astronomers as the Owl Cluster, Kachina Doll Cluster, the ET Cluster (due to its resemblance to the movie character) or the "Skiing Cluster". Two bright stars, magnitude 5 Phi-1 Cassiopeiae and magnitude 7 Phi-2 Cassiopeiae can be imagined as eyes. The cluster features a rich field of about 150 stars of magnitudes 12-15. Source: https://en.wikipedia.org/wiki/NGC_457 AL: Herschel 400, Caldwell [13], Deep Sky Binocular, Asterism Double Star Zeta Piscium (DS) Pisces ra: 01h 14m dec: +07° 35’ Magnitudes (visual) = 5.2, 6.2 Separation = 23” Position angle = 63° Description: Zeta Piscium is an optical and spectroscopic binary system, with three components — Zeta Piscium A, Zeta Piscium B and Zeta Piscium C. Zeta Piscium B and C are spectroscopic binaries with each other, and both are optical binaries with Zeta Piscium A. The separation between Zeta Piscium A and the B and C system is 23 arcsec. ∙ Zeta Piscium A, also known as HR 361, is the brighter optical component, with an apparent magnitude of +5.21 and absolute magnitude of +1.93. Zeta Piscium A is a subgiant with spectral class of A7IV, with 1.8 solar masses, and effective temperature of 7900K. Zeta Piscium A is located approximately 147.5 LY from the Sun. ∙ Zeta Piscium B, also known as HR 362 is an F7V dwarf with effective temperature of 6400K and 1.3 solar masses. It has an apparent magnitude of 6.44 and absolute magnitude of +2.55. It is located 195.2 LY from the Sun. ∙ Zeta Piscium C is a white dwarf companion to Zeta Piscium B. Source: http://us.wow.com/wiki/Zeta_Piscium AL: Double Star .