16221+0102 LUH 11 (Sig Ser)

Coord 2000	16221+0102		Discov num	LUH  11		Comp			Coord arcsec 2000	16 22 04.34 +01 01 44.5
Date first	2000		Date last	2016		Obs	7
Pa first	133		Pa last	132.2		P.A. Now (θ)	132.2°
Sep first	42.9		Sep last	42.989		Sep. Now (ρ)	42.989"
Mag pri	4.09		Mag sec	7.82		delta mag (ΔM)	3.73		Spectral class	F0V+M2V (yellow-white/red)
Pri motion ra	-158		Sec motion ra	-155
Pri motion dec	+050		Sec motion dec	+055
Notes	N V K (See Notes, Proper motion indicates physical, K-band or other infrared magnitudes)

Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes rPM=0.035 (< 0.3, Physical double) This double is physical.

Name	Sig Ser		Constellation	Serpens		SAO	121540		HIP	80179
Tycho2	0368-01592-1		Gaia DR2	4408631032806478208		HD	147449		HR	6093
GC	22007		GL	NN 3952		BD	BD+01 3215		Bayer	Sigma Serpentis
Bayer name	Sig Ser		Flamsteed	50 Serpentis		Flamsteed name	50 Ser		FK5	1427
Distance	27.27		Distance ly	88.95		Bayer greek	σ Ser