Pegasus (Pronounciation:Peg-a-sus, Abbrev:Peg, Latin:Pegasi) is a constellation, one of 88 constellations that the night sky is divided into. The sky is not divided up equally between the constellations. Pegasus takes up 1120.794 sq. degrees of the night sky which equates to 2.72% of the night sky. The constellation gets its name as it name means The Winged Horse . The constellation is one of the original constellations that was devised by the Ancient Greco-Egyptian astronomer Ptolemy who lived between 90 A.D. and 168 A.D.
Pegasus is not a member of the Zodiac group of twelve constellations that appear when the Sun sets. Pegasus is a northern hemispheric constellation which means it can't be seen easily or at all from the southern hemisphere.
The brightest star in Pegasus is Markab. There are 26 Extrasolar Planets (Exoplanets) in this constellation that are detailed on this site. There is a dedicated page for exoplanets in Pegasus. The current largest star so far identified in the constellation of Pegasus is S Pegasi. For a list of named stars, that is stars that don't start HD or HIP, please visit Pegasus Star List Page.
The number of stars that have been catalogued as part of the Hipparcos Star Catalogue from Pegasus is 2689. The number of stars that are of magnitude 6.0 or lower in the constellation is 98. The number of stars in the constellation that make up the outline is 14.
There are 1 deep space objects that were identified by Charles Messier in this constellation. There are 2 non-Messier deep space objects that are covered on this site and the list is below.
The nearest star to Earth is EQ Pegasi which is roughly about 20.16 Light Years from the Earth. The nearest star to the Earth with an exoplanet is Helvetios which is about 50.91 Light Years. The furthest star that can be located in the constellation is HIP 108953 which is located about 326163.3 Light Years away from the Sun. The furthest figure is derived from either the 1997 or 2007 Hipparcos star catalogue parallax figure and it has been known to produce distances that are wrong.
The dimmest star that can be seen in Pegasus with the naked eye is 18 Pegasi. The dim star has an apparent magnitude of 6. The dimmest star that a person is able to see with their naked eye is 6.0 magnitude based on the table in the reference. Ref: University of Michigan
The caveat of these stars are that they are catalogued on this site. If you know of a star that is nearer or further then do let me know in the comments and I'll add it to the site. The stars mentioned are from the Hipparcos catalogue or have been added because of their special status.
There are 21 Meteor Showers that occur during the year within this constellation based on information gathered from Adam Mickiewicz University (Poland). The ones listed as the ones I've been able to find a date range for. For others if you have the time, you can visit the AMU site, obtains the SL value then use IMO tables to calculate the date. A lot of the Meteor Showers are weak and you need to do a lot of stargazing to spot them.
|Name||Activity||Peak Activity||Closest Star|
|Pegasids||July 7-13||July 9th||Markab|
|Is a Zodiac Sign||No|
|Largest Star||S Pegasi|
|Area||1120.794 sq. deg.|
|Percentage of Night Sky||2.72%|
|Site Exoplanet Count||26|
|Meteor Shower Count||21|
|Nearest Star||EQ Pegasi|
|Nearest Star with Exoplanet(s)||Helvetios|
|Dimmest Star||18 Pegasi|
|Furthest Star||HIP 108953|
|Bright Star Count||98|
|Hipparcos Star Count||2689|
|Main Star Count||14|
|Messier Deep Space Object Count||1|
|*Non-Messier Deep Space Object Count||2|
|Bordering / Neighbouring / Surrounding Constellations||Lacerta|
*Note: The number of Non-Messier Deep Space Object Count relates to how many are covered on this site not how many there are.
The map was generated using Night Vision, an awesome free application by Brian Simpson.
|Messier 15 (NGC7078)||Globular Cluster||33000||+12:10||21h 30m 0|
|NGC 7742||Seyfret Galaxy||72.4 Million LY||+10d 46' 02||23h 44m 15m 7|
|Pegasus Dwarf Irregular Galaxy||Dwarf Irregular Galaxy||3m||14:44.35||23h 28m 36m 2|
|Pegasus Dwarf Spheroidal Galaxy||Dwarf Spheroidal Galaxy||2.7m||24:34.57||23h 51m 46m 3|
|Associated Comet||C/1979 Y1 (Bradfield)|
|Max Activity Date||07 Sep|
|Activity Period||July 7-13|
|Zenith Hourly Rate||3|