HD 1

HD 1 (also named HIP 422), is the first star catalogued in the Henry Draper Catalogue and the 422nd star catalogued in the Hipparcos Catalogue. The star is located in the constellation Cepheus. It has an apparent magnitude of 7.42 which makes it visible in binoculars, but not to the naked eye. The star is located far away at 1,220 light years but is moving towards the Solar System with a spectroscopic radial velocity of −27.3 km/s.

HD 1 is the bright star in the center of the image.

References

  1. ↑ Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (2000-03-01). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. ISSN 0004-6361.
  2. ↑ "Digital Object Identifier System". doi.org. Retrieved 2022-11-11.