19507-4454 DON 970

Coord 2000	19507-4454		Discov num	DON 970		Comp			Coord arcsec 2000	19 50 39.32 -44 53 39.4
Date first	1929		Date last	2016		Obs	3
Pa first	201		Pa last	199.3		P.A. Now (θ)	199.3°
Sep first	1.8		Sep last	2.297		Sep. Now (ρ)	2.297"
Mag pri	10.36		Mag sec	13.40		delta mag (ΔM)	3.04		Spectral class	A9V (white)
Pri motion ra	+011		Sec motion ra
Pri motion dec	-023		Sec motion dec
Notes

Nature of this double is uncertain.

Constellation

Sagittarius

Tycho2

7946-00924-1

Gaia DR2

6684272789769389952

HD

187187

No records found.

refcode	metd	author	reference
Don1937	Ma j	Donner, H.F.	1937MmRAS..65...51R
Don1937		MemRAS 65, 51, 1937
Don1955	Ma -	Donner, H.F.	1955POMic..11....1R
Don1955		Pub. Univ. Michigan Obs. 11, 1, 1955
Don1964	Ma j	Donner, H.F.	1964POMic...9...73R
Don1964		Pub. Univ. Michigan Obs. 9, 73, 1964

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19507-4454	DON 970		1929	1	201	1.8	10.36	13.40	A9V		195039.32-445339.4
19507-4454	DON 970		2015	2	199	2.3	10.36	13.40	A9V		195039.32-445339.4
19507-4454	DON 970		2016	3	199	2.3	10.36	13.40	A9V		195039.32-445339.4

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No records found.


No records found.

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Radius: auto 0.5" 0.8" 1" 2" 3" 5" 10" 15" 20" 25" 30" 35" 40" 45" 50" 55" 1' 2' 3' 4' 5' 6' 7' 8' 9' 10' 15' 20' 30' 40' 50' 1° 2° 4° 5° 8° Components only

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS