Yellow main-sequence star · Cassiopeia
μ Cassiopeiae
Also known as: μ Cas, HIP 5336
mag 5.225 light-years
About
μ Cassiopeiae is a yellow main-sequence star of magnitude 5.2 in Cassiopeia, about 25 light-years away.
How to find it
- μ Cassiopeiae is in the constellation Cassiopeia.
- Best evenings: around late November 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 north of 25° S.
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
- EyesNeeds a dark sky away from city lights.
- 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
| Designation | μ Cassiopeiae (μ Cas) |
|---|---|
| Hipparcos number | HIP 5336 |
| Type | Yellow main-sequence star |
| Spectral type | G5Vp |
| Colour | YellowB−V colour index 0.70 |
| Magnitude | 5.2The smaller the number, the brighter. |
| Distance | 25 light-yearsThe light you see left it around 2001. |
| Proper motion | 3.78″ per year across the sky |
| Constellation | Cassiopeia |
| Right ascension (J2000) | 01h 08m 14.9s |
| Declination (J2000) | +54° 55′ 13″ |
Sources and credits
Star data: HYG Database by David Nash, CC BY-SA 4.0. All data sources →