11438+4411 ES 123 BC

Coord 2000	11438+4411		Discov num	ES  123		Comp	BC		Coord arcsec 2000	11 43 47.90 +44 10 40.2
Date first	1895		Date last	2015		Obs	21
Pa first	284		Pa last	281.6		P.A. Now (θ)	281.6°
Sep first	42.4		Sep last	42.13		Sep. Now (ρ)	42.13"
Mag pri	11.45		Mag sec	11.04		delta mag (ΔM)	0.41		Spectral class
Pri motion ra	-001		Sec motion ra	-005
Pri motion dec	-005		Sec motion dec	-020
Notes	N U (See Notes, Proper motion indicates non-physical)

rPM=0.753 This double is not physical.

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show			11 43 48 +44 10 46	ES 123 AB	2020	26	204	6.8	11.33	11.45	0.12
Show			11 43 48 +44 10 46	ES 123 AC	2020	25	273	44.6	11.33	11.04	0.29
Show			11 43 48 +44 10 40	ES 123 BC	2015	21	282	42.1	11.45	11.04	0.41		<===

Triple system
3 estimated visually detectable stars in this system

Constellation

Ursa Major

Tycho2

3016-00414-2

Gaia DR2

772874283969544320

discov_num	notes	refcode
ES 123	B is also a 2.2d spectroscopic binary.	Tok2019b

refcode	metd	author	reference
Tok2019b	not j	Sperauskas, J., Deveilkis, V. & Tokovinin, A.	2019A&A...626A..31S
Tok2019b		A&A 626 A31, 2019

idgroup	discov	author
1	ES	Espin, T.E.

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
11438+4411	ES 123	BC	1998	13	282	42.3	11.45	11.04		D	114347.90+441040.2
11438+4411	ES 123	BC	2004	16	282	42.3	11.45	11.04		D	114347.90+441040.2
11438+4411	ES 123	BC	2015	16	282	42.1	11.45	11.04			114347.90+441040.2

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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