04188-0242 STF 525 BC

04^h 18^m 42.47^s -02° 42' 07.7" P.A. 170.00 sep 7.9 mag 10.18,10.70

Coord 2000	04188-0242		Discov num	STF 525		Comp	BC		Coord arcsec 2000	04 18 42.47 -02 42 07.7
Date first	1879		Date last	2018		Obs	17
Pa first	169		Pa last	169.9		P.A. Now (θ)	169.9°
Sep first	7.2		Sep last	7.873		Sep. Now (ρ)	7.873"
Mag pri	10.18		Mag sec	10.70		delta mag (ΔM)	0.52		Spectral class
Pri motion ra	-016		Sec motion ra	-016
Pri motion dec	-005		Sec motion dec	-010
Notes

rPM=0.265 (< 0.3, Physical double)

This double is physical.

04188-0242 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	HD 27340	131106	04 18 45 -02 41 48	STF 525 AB	2015	18	244	45.3	8.91	10.18	1.27
Show		131106	04 18 45 -02 41 48	STF 525 AC	2015	11	235	48.0	8.91	9.91	1.00
Show			04 18 42 -02 42 08	STF 525 BC	2018	17	170	7.9	10.18	10.70	0.52		<===

Triple system
3 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Constellation

Eridanus

Tycho2

4729-00243-1

Gaia DR2

3204284682173610240