The 7 CMa System
7 CMa is a planetary system in the constellation Canis Major hosting 2 confirmed exoplanets, about 65 light-years from Earth.
7 CMa: Star and Habitable Zone
7 CMa
- Surface temperature
- 4,826 K (Sun: 5,772 K)
- Mass
- 1.34 M☉
- Radius
- 4.87 R☉
- Luminosity
- 11.5499 L☉
- Age
- 4.3 billion years (Sun: 4.6)
Habitable zone of 7 CMa: 2.683–6.534 AU (conservative: 3.399–6.195 AU), per Kopparapu et al. (2014). Earth orbits the Sun at 1 AU.
See the full interactive habitable-zone view in the Exoplanet Explorer app ›
All 2 Planets in the 7 CMa System
Discovery History
The first planet found here, 7 CMa b, was discovered in 2011 using the radial velocity method. The most recent addition, 7 CMa c, followed in 2019.
Frequently Asked Questions About 7 CMa
How many planets does 7 CMa have?
7 CMa has 2 confirmed exoplanets. More may await discovery.
Are any planets in the 7 CMa system habitable?
None of the known planets in 7 CMa orbit within the star's habitable zone.
How far away is 7 CMa?
7 CMa is about 65 light-years from Earth in the constellation Canis Major.
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