In Evidence
Other stars in Ophiuchus
- Rasalhague
- Sabik
- ζ Ophiuchi
- Yed Prior
- Cebalrai
- κ Ophiuchi
- Yed Posterior
- θ Ophiuchi
- ν Ophiuchi
- 72 Ophiuchi
- γ Ophiuchi
- Marfik
- 67 Ophiuchi
- 70 Ophiuchi
- 44 Ophiuchi
- φ Ophiuchi
- 45 Ophiuchi
- σ Ophiuchi
- ι Ophiuchi
- ξ Ophiuchi
- χ Ophiuchi
- 68 Ophiuchi
- ω Ophiuchi
- ψ Ophiuchi
- HR6493
- μ Ophiuchi
- υ Ophiuchi
- 66 Ophiuchi
- 71 Ophiuchi
- 20 Ophiuchi
- 41 Ophiuchi
- 51 Ophiuchi
- 30 Ophiuchi
- 74 Ophiuchi
- 58 Ophiuchi
- HR6196
- HR6433
- Guniibuu
- 36 Ophiuchi
- HR6128
- τ Ophiuchi
- 23 Ophiuchi
- HR6516
- 37 Ophiuchi
- 43 Ophiuchi
- HR6985
- HR6857
- HR6136
- HR6507
- HR6987
- HR6686
- HR6800
- 21 Ophiuchi
- HR6375
- HR6202
- 24 Ophiuchi
- HR6524
- HR6534
- HR6353
- HR6902
- HR6140
- HR6797
- 73 Ophiuchi
- 14 Ophiuchi
- 12 Ophiuchi
- 26 Ophiuchi
- HR6670
- HR6476
- 53 Ophiuchi
- HR6684
- HR6472
- HR6308
- HR6706
- HR6269
- HR6414
- HR6883
- ρ Ophiuchi
- HR6590
- HR6667
- HR6689
- HR6365
- HR6404
- HR6494
- HR6834
- HR6349
- HR6435
- HR6235
- 16 Ophiuchi
- HR6520
- HR6497
- HR6367
- HR6124
- HR6925
- HR6179
- HR6193
- HR6413
- HR6240
- 19 Ophiuchi
- HR6577
- HR6387
- HR6747
- HR6650
- HR6412
- 61 Ophiuchi
- HR6067
- HR6474
- HR6578
- HR6296
- HR6661
- HR6473
- HR6633
- HR6201
- HR6277
- HR6041
- HR6190
- HR6575
- 29 Ophiuchi
- HR6294
- HR7010
- HR6690
- HR6354
- HR6465
- HR6851
- HR6601
- HR6340
- HR6350
- HR6439
- HR6248
- HR6329
- HR6390
- HR6719
- HR6189
- HR6659
- HR6696
- HR6593
- HR6372
- HR6359
- HR6358
- HR6784
- HR6709
- HR6512
- HR6284
- HR6504
- HR6361
- HR6676
- HR6521
- HR7002
- HR6976
- HR5990
- HR6992
- HR6967
- HR6532
- HR6428
- HR6489
- HR6490
- HR6639
- HR6137
- HR6144
- HR6434
- HR6441
- HR5989
- HR6386
- HR6610
- HR6385
- HR6278
- 52 Ophiuchi
- HR6302
- HR6317
- HR6844
- HR6776
- HR6394
- HR6941
- HR6732
- ο Ophiuchi
- HR6758
30 Ophiuchi
30 Ophiuchi is a variable and double giant star of spectral class K4 in the constellation of Ophiuchus.
30 Ophiuchi visual magnitude is 4.82. Because of its moderate brightness, 30 Ophiuchi is easily visible to the naked eye from locations with dark skies, while it might be barely visible, or not visible at all, from light-polluted skies.
Celestial Coordinates
Apparent
J2000
Galactic Coordinates
Finder Chart
Magnitude, Color, Spectral Class
The red dot in the diagram below shows where 30 Ophiuchi is situated in the Hertzsprung–Russell diagram.
Star System Properties
30 Ophiuchi is a visual double star which can be observed with the help of small or medium telescopes. The table below shows key information about the 30 Ophiuchi double sysyem:
Distance, Radial Speed, Proper Motion
30 Ophiuchi is distant 401.97 light years from the Sun and it is moving towards the Sun at the speed of 7 kilometers per second.
Alternative Designations
Visibility from Your Location
Today's 30 Ophiuchi rise, transit and set times from Greenwich, UK are the following (all times relative to the local timezone Europe/London):