Yellow giant · Hydra

Zhang

Also known as: υ¹ Hydrae (υ¹ Hya), HIP 48356

mag 4.1260 light-years

About

Zhang (υ¹ Hydrae) is a yellow giant of magnitude 4.1 in Hydra, about 260 light-years away.

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How to find it

  • Zhang is in the constellation Hydra.
  • Best evenings: around early April it is highest at about 9 pm (10 pm in summer time); a month earlier, two hours later.
  • Where on Earth: it is seen well, at least 10° up, from south of 65° N.

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When it rises and sets tonight, how high it climbs and how much the Moon gets in the way are worked out in your browser for your place.

What you will see

  • EyesVisible from the suburbs on a clear night, but lost in bright city skies.
  • Binoculars (10×50)A sharp point; binoculars bring out its colour and the fainter stars around it.
  • Telescope (6–8 inch)Still a point of light at any magnification — stars are too far away to show a disc. Low in the sky, bright stars twinkle and flash colours.

Stars look the same in any instrument: brighter and sharper, but never bigger.

Facts

Proper nameZhang
Designationυ¹ Hydrae (υ¹ Hya)
Hipparcos numberHIP 48356
TypeYellow giant
Spectral typeG6/G8III
ColourPale orangeB−V colour index 0.92
Magnitude4.1The smaller the number, the brighter.
Distance260 light-yearsThe light you see left it around 1760.
Proper motion0.029″ per year across the sky
ConstellationHydra
Right ascension (J2000)09h 51m 28.7s
Declination (J2000)−14° 50′ 48″

More in Hydra

Sources and credits

Star data: HYG Database by David Nash, CC BY-SA 4.0. All data sources →