Coord 2000	19540+1741	Discov num	BPM1801	Comp	AB	Coord arcsec 2000	19 54 00.24 +17 40 54.6
Date first	1996	Date last	2015	Obs	8
Pa first	312	Pa last	312	P.A. Now (θ)	312°
Sep first	27.0	Sep last	26.7	Sep. Now (ρ)	26.7"
Mag pri	15.35	Mag sec	15.56	delta mag (ΔM)	0.21	Spectral class
Pri motion ra	+010	Sec motion ra	+000
Pri motion dec	-015	Sec motion dec	-010
Notes	N U (See Notes, Proper motion indicates non-physical)

Visually invisible, K-band or other infrared star rPM=0.62

This double is not physical.

19540+1741 SYSTEM COMPONENTS

Show

name

SAO

coord_2000

discov#

comp

first

last

obs

sep

mag1

mag2

d_mag

orb

current

Show

19540+1741

BPM1801

1996

2015

312

26.7

15.35

15.56

0.21

<===

Show

19540+1741

BPM1802

1994

2015

281

103.7

15.56

15.53

0.03

Triple system
3 visible stars in this system

OTHER CATALOGS AND DESIGNATIONS

Precise pa

312

Precise sep

26.713

Constellation

Sagitta

Gaia DR2

07097574144

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
19540+1741	BPM1801	AB	1997	2	312	26.8	15.35	15.56		NV	195400.24+174054.6
19540+1741	BPM1801	AB	2001	3	312	26.9	15.35	15.56		NV	195400.24+174054.6
19540+1741	BPM1801	AB	2015	4	312	26.8	15.35	15.56		NU	195400.24+174054.6

If you need more information about this double, apply for a data request form to the WDS.