solar mass

noun

: the mass of the sun used as a unit for the expression of the masses of other celestial objects and equal to about 2 × 1030 kilograms

Examples of solar mass in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Meanwhile, a merger of two objects spotted via gravitational waves by the LIGO-Virgo-KAGRA collaboration last year has intrigued scientists—because both objects might be less than a solar mass. Jonathan O'Callaghan, Scientific American, 4 June 2026 This is believed to be the result of a 34 solar mass black hole colliding and merging with a 32-solar-mass black hole around 1 billion light-years away. Robert Lea, Space.com, 1 June 2026 There is also an upper limit on the mass left behind by pair instabilities, which is a roughly 130 solar mass black hole. ArsTechnica, 1 Apr. 2026 But 4 billion light-years away, a tightly orbiting pair of supermassive black holes known as OJ 287 resides, with a ~150 million solar mass black hole orbiting one of tens of billions of solar masses every ~11-12 years. Ethan Siegel, Big Think, 4 Aug. 2025 See All Example Sentences for solar mass

Word History

First Known Use

1941, in the meaning defined above

Time Traveler
The first known use of solar mass was in 1941

Browse Nearby Words

Cite this Entry

“Solar mass.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/solar%20mass. Accessed 8 Jun. 2026.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

More from Merriam-Webster