21 Cancri

21 Cancri
Observation data Epoch J2000.0 Equinox J2000.0 (ICRS)
Constellation	Cancer
Right ascension	08^h 23^m 55.20938^s ^[1]
Declination	+10° 37′ 55.4040″ ^[1]
Spectral type	M2III ^[1]

21 Cancri (21 Cnc) is a star in the constellation Cancer. Its apparent magnitude is 6.11.

References

Bayer	α (Acubens / Sertan) β (Tarf) γ (Asellus Borealis) δ (Asellus Australis) ε ζ (Tegmine) η θ ι κ λ μ¹ μ² ν ξ ο¹ ο² π¹ π² ρ¹ ρ² σ¹ σ² σ³ τ υ¹ υ² φ¹ φ² χ ψ¹ ψ² ω¹

Flamsteed	1 3 4 (ω²) 5 7 8 11 12 15 20 21 24 25 27 28 29 34 35 36 37 38 39 40 42 44 45 46 49 50 52 53 54 55 (ρ¹) 57 60 61 66 67 68 70 71 75 78 79 80 83 1 LMi 2 LMi 3 LMi 4 LMi

Variable	R S T U V X RS RU RX RZ SS SY TT TU TW TX UU VZ WY YZ AC AD AH AK AR AT AZ BN BQ BR BS BU BW BX CC CU CY DW DX EG EP ES EV EW EX FZ GY HU HV

HR	3104 3115 3125 3127 3158 3164 3198 3201 3222 3228 3231 3252 3264 3306 3376 3380 3394 3395 3424 3428 3504 3558 3567 3599 3606 3617 3620 3635 3657 3689 3707

HD	67542 69629 72115 73534 74721 76908 79498

Other	ADS 7284 G 9-38 HAT-P-31 LHS 2090 PSR B0823+26 RX J0806.3+1527 YBP 1194

Open	Beehive Cluster Messier 67 NGC 2664 NGC 2678

Planetary	Abell 30

Other

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