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Norma, The Rule Constellation

Norma (Pronounciation:Nore-ma, Abbrev:Nor, Latin:Normae) is a constellation, one of 88 constellations that the night sky is divided into. The sky is not divided up equally between the constellations. Norma takes up 165.29 sq. degrees of the night sky which equates to 0.4% of the night sky. The constellation gets its name as it name means The Rule . It was not one of the original constellations that had been devised by Ptolemy, instead it was created by Abbé Nicolas Louis de Lacaille years later.

Norma is not a member of the Zodiac group of twelve constellations that appear when the Sun sets. Norma is a southern hemispheric constellation which means it can't be seen easily or at all from the northern hemisphere.

The brightest star in Norma is Gamma1 Normae. There are 4 Extrasolar Planets (Exoplanets) in this constellation that are detailed on this site. There is a dedicated page for exoplanets in Norma. For a list of named stars, that is stars that don't start HD or HIP, please visit Norma Star List Page.

Norma Star and Deep Space Object Count

The number of stars that have been catalogued as part of the Hipparcos Star Catalogue from Norma is 681. The number of stars that are of magnitude 6.0 or lower in the constellation is 26. The number of stars in the constellation that make up the outline is 4.

There are no deep space objects that were identified by Charles Messier in this constellation. There are 1 non-Messier deep space objects that are covered on this site and the list is below.

Stars of Interest

The nearest star to Earth is HIP 79537 which is roughly about 45.29 Light Years from the Earth. The nearest star to the Earth with an exoplanet is HD 142415 which is about 111.66 Light Years. The furthest star that can be located in the constellation is HIP 76661 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 Norma with the naked eye is HD 141544. 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 is no Greek Legend behind this constellation. It was created by Abbé Nicolas Louis de Lacaille to fill in the voids in the astronomical charts. Surprisingly, there are no stars designated as Alpha Normae or Beta Normae. The first in the Greek alphabet is Gamma Normae. If I'm wrong, let me know but I'm not aware of Alpha or Beta.

There are no major meteor showers that radiate from within this constellation.

Norma Facts

Is a Zodiac Sign No
Brightest StarGamma1 Normae
Area165.29 sq. deg.
Percentage of Night Sky0.4%
Size Position74th
Hemisphere Southern
Site Exoplanet Count4
Meteor Shower Count1
Nearest StarHIP 79537
Nearest Star with Exoplanet(s)HD 142415
Dimmest StarHD 141544
Furthest StarHIP 76661
Bright Star Count26
Hipparcos Star Count681
Main Star Count4
Messier Deep Space Object Count0
*Non-Messier Deep Space Object Count1
Bordering / Neighbouring / Surrounding ConstellationsLupus
Triangulum Australe

*Note: The number of Non-Messier Deep Space Object Count relates to how many are covered on this site not how many there are.

Norma Constellation Map

Norma Constellation Star Map

The map was generated using Night Vision, an awesome free application by Brian Simpson.

List of Deep Space Objects (Galaxies, Nebulas, Supernovas, etc) in Norma

NameTypeDistanceDeclinationRight Ascension
RCW103Supernova Remnant10,70051:01:4816h 17h 28m 80

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