M31 THE GREAT ANDROMEDA GALAXY

M31    The    Andromeda    Galaxy,    also    known    as Messier    31,    or    NGC    224,    is    a    spiral    galaxy approximately   780   kiloparsecs   (2.5   million   light- years)   from   Earth.   It   is   the   nearest   major   galaxy to   the   Milky   Way   and   was   often   referred   to   as the   Great   Andromeda   Nebula   in   older   texts.   It received   its   name   from   the   area   of   the   sky   in which       it       appears,       the       constellation       of Andromeda,      which      was      named      after      the mythological princess Andromeda. Andromeda   is   approximately   220,000   light   years across,   and   it   is   the   largest   galaxy   of   the   Local Group,   which   also   contains   the   Milky   Way,   the Triangulum Galaxy, and other smaller galaxies. The   mass   of   the   Andromeda   Galaxy   is   estimated to   be   1.5×1012   solar   masses,   while   the   Milky   Way is estimated to be 8.5×1011 solar masses.
designed  by Lluís Romero Ventura
 The Earth     astrosirius@astrosirius.org 
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M31 THE GREAT ANDROMEDA GALAXY

Place:        Ager-Lleida-Spain SQM:         21.3 - 21.6 Dates:       Sep. & Oct. 2016 Details Telescope:  GSO RC14 Truss Mount:        ASA DDM85 Camera:      Moravian G2-8300 Focuser:      Seletek Armadillo 2 Flattener:    CCDT67 0.67x Exposure:    L: 18x300 sec bin1                       RGB: 12x300 sec bin1 Processing: Pixinsight & Photoshop CC Software:     MaximDL, Sequence,Autoslew Control Remote:  Talon6

Galaxies

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