Astronomy and Space

45 Draconis

45 Draconis is a single star located in the northern circumpolar constellation of Draco, around 3,200 light years from the Earth. 45 Draconis is the Flamsteed designation, while it has the Bayer designation of d Draconis. This object is visible to the naked eye as a faint, yellow-white hued star with an apparent visual magnitude of 4.78. Radial velocity measurements indicate it is moving closer to the Sun at the rate of −12.5 km/s. This star has a stellar classification of F7Ib, matching an F-type supergiant. It is approximately 33 million years old with 8.2 times the mass of the Sun and about 102 times the Sun's radius. The star is radiating 12,700 times the Sun's luminosity from its photosphere at an effective temperature of 6,151 K.

Also on this shelf

See also

• ▸Explorer 27
• ▸Grand Coulee
• ▸Association in Scotland to Research into Astronautics

Uncatalogued shelf

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