03052-3725 BRG 18

03^h 05^m 09.76^s -37° 25' 05.8" P.A. 357.00 sep 0.2 mag 9.54, Sp M1.5+M3.0

Coord 2000	03052-3725	Discov num	BRG 18	Comp		Coord arcsec 2000	03 05 09.76 -37 25 05.8
Date first	2008	Date last	2015	Obs	5
Pa first	54	Pa last	357.4	P.A. Now (θ)	357.4°
Sep first	0.2	Sep last	0.224	Sep. Now (ρ)	0.224"
Mag pri	9.54	Mag sec		delta mag (ΔM)		Spectral class	M1.5+M3.0 (red/red)
Pri motion ra	+060	Sec motion ra
Pri motion dec	-005	Sec motion dec
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

This double is physical.

OTHER CATALOGS AND DESIGNATIONS

Constellation

Fornax

Gaia DR2

5045153363689822080

WDS 03052-3725 BRG 18 : NOTES

discov_num	notes	refcode
BRG 18	This target, like BRG 23, gives conflicting information about whether
	the AB pair is physically bound. The brightness and color are fully
	consistent with B being an M3.5 companion to the M2.0 primary.
	Furthermore, the separation is only 0.2", and the whole field is
	otherwise empty. This indicates physical companionship. However, the
	deviation from the expectation of a background source is only 1.1
	sigma, and the companion has moved 3.6 times closer to the background
	expectation than its original position where the motion has a 14 sigma
	confidence. This, by contrast, suggests a chance alignment. Since the
	magnitude of motion is not inconsistent with what could be expected
	for orbital motion of a real physical pair, we keep it as binary in
	our analysis, but we note that further observations will be necessary
	in order to resolve this issue satisfactorily.	Jnn2012

REFERENCES

refcode	metd	author	reference
Jnn2012	Cl j	Janson, M., Hormuth, F., Bergfors, C., Brandner, W., Hippler, S., Daemgen, S.,	2012ApJ...754...44J
Jnn2012	+E2	Kudryavtseva, N., Schmalzl, E., Schnupp, C., & Henning, T.
Jnn2012		ApJ 754, 44, 2012 (some recalibrated measures published in Jnn2014b)	2014ApJS..214...17J

DISCOVERER

idgroup	discov	author
1	BRG	Bergfors, C. Brandner, W., Janson, M., Daemgen, S., Geissler, K., Henning, T.,
1	BRG	Hippler, S., Hormuth, F., Joergens, V., & Koehler, R.
10	BRG	Bergfors, C. Brandner, W., Daemgen, S., Biller, B., Hippler, S., Janson, M.,
10	BRG	Kudryavtseva, N., Geissler, K., Henning, T., & Koehler, R.
11	BRG	Bergfors, C. Brandner, W., Bonnefoy, M., Schlieder, J., Janson, M., Henning, Th. &
11	BRG	Chauvin, G.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
03052-3725	BRG 18		2008	1	54	0.2	9.54		M1.5 M3.0	DK	030509.76-372505.8
03052-3725	BRG 18		2010	2	48	0.2	9.54		M1.5 M3.0	DK	030509.76-372505.8
03052-3725	BRG 18		2012	4	43	0.2	9.54		M1.5 M3.0	NV K	030509.76-372505.8
03052-3725	BRG 18		2015	5	357	0.2	9.54		M1.5+M3.0	NV K	030509.76-372505.8

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

WDS 03052-3725 BRG 18 : VISUAL OBSERVATIONS REPORTS

No records found.

WDS 03052-3725 BRG 18 : MEASURES

No records found.

WDS 03052-3725 : VIRTUAL EYEPIECE

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WDS 03052-3725 : ALADIN DSS IMAGE @ 03^h 05^m 09.76^s -37° 25' 05.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 03052-3725 BRG 18 : NEIGHBORHOODS

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Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show		03052-3725	BRG 18		357	0.2
Show		03055-3738	HDS 392		357	0.1	14
Show		03058-3656	RST2295		332	1.1	31
Show		03031-3803	HJ 3549		275	6.2	46
Show		03068-3810	TDS2447		102	2.5	49
Show		03088-3750	TDS2457		20	4.5	51
Show		03095-3752	HJ 3553		227	12.3	58
Show		03053-3844	KPP3509		146	1.9	80
Show		02588-3758	TDS2402		234	0.5	83
Show		03120-3705	RST2297		200	1.9	85
Show		03128-3807	B 1445		311	0.8	101
Show		03021-3859	TDS2420		2	5.0	102
Show		03007-3556	KPP2862	AB	280	3.4	104
Show		02588-3851	RST3374		91	0.3	114
Show		02594-3859	TDS2407		151	0.5	117
Show		02588-3903	TDS2403		190	0.5	124
Show		02568-3609	HDS 378	Aa,Ab	311	0.3	127
Show		02568-3609	LDS 82	AB	70	26.9	127
Show		03107-3537	BRT1586		26	3.3	127
Show		03139-3840	WG 18	AB	105	4.3	127
Show		03018-3928	B 681		180	1.3	129
Show		03161-3736	TDS2508		206	1.0	131
Show		03147-3621	TDS2494		296	0.4	132
Show		03161-3742	KIR 9		229	26.2	132
Show		02544-3656	B 1439		60	2.7	133
Show		02558-3839	B 679		54	2.2	133
Show		02590-3929	RST1249		52	1.6	144
Show		02548-3609	SKF1428		147	24.5	146
Show		02536-3826	TOK 652		222	560.9	151
Show		03036-3956	TSN 48		36	16.6	152
Show		02590-3507	KPP1135		233	8.9	157
Show		02566-3927	COO 17		190	3.3	159
Show		02562-3529	SKF1200		111	18.6	159
Show		03063-3447	TDS2443		312	0.8	160
Show		03147-3533	GAA 4		247	0.0	161
Show		02540-3554	LDS 81		189	36.5	162
Show		03040-4006	I 1144		284	0.2	162
Show		03182-3823	HDS 415		313	0.5	165
Show		02558-3521	B 1440		22	7.4	168
Show		03165-3541	SHY 439	AB	133	999.9	172
Show		03165-3541	SHY 439	AC	191	999.9	172
Show		03165-3541	SHY 439	AD	130	999.9	172
Show		03165-3541	SHY 439	Aa,Ab	129	0.2	172
Show		03131-3501	TDS2481		57	2.1	174
Show		03058-3430	TDS2441		184	0.8	176
Show		03125-3449	LDS 89	AB	329	52.8	181
Show		03125-3449	WIS 85	BC	1	999.9	181
Show		03165-3541	SHY 441	BC	218	999.9	183
Show		02564-3457	RST5194		136	0.4	183
Show		03132-3445	UC 965		252	9.8	188
Show		03140-3450	TDS2489		47	0.5	189

WDS 03052-3725 : COMPONENTS

	A
B	pa=357.9° sep=0.22"

03052-3725 A

Componente originario normalizzato	AB		Coord arcsec 2000	030509.76-372505.8		Mag	9.54		Spectral class	M1.5 (red)
PmRA	60.00		PmDE	-5.0

03052-3725 B

Componente originario normalizzato	AB		Coord arcsec 2000	030509.76-372505.6		Spectral class	M3.0 (red)		Calc delta mag	9.54
Calc coord	yes