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Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

02507+5554 STF 307 AB (Miram)

02^h 50^m 41.81^s +55° 53' 43.8" P.A. 301.00 sep 28.7 mag 3.76,8.50 Sp M3I+B9V dist. 269.54 pc (879.24 l.y.)

Coord 2000	02507+5554	Discov num	STF 307	Comp	AB	Coord arcsec 2000	02 50 41.81 +55 53 43.8
Date first	1779	Date last	2018	Obs	58
Pa first	290	Pa last	301	P.A. Now (θ)	301°
Sep first	26.0	Sep last	28.7	Sep. Now (ρ)	28.7"
Mag pri	3.76	Mag sec	8.50	delta mag (ΔM)	4.74	Spectral class	M3I+B9V (red/blue-white)
Pri motion ra	+016	Sec motion ra	+016
Pri motion dec	-014	Sec motion dec	-014
Notes	N T (See Notes, Parallax indicates physical)

This double is physical.

02507+5554 SYSTEM COMPONENTS

Show	name	SAO	coord	wds_name	last	obs	pa	sep	mag1	mag2	d_mag	orb	current
Show	Miram	23655	02 50 42 +55 53 44	STF 307 AB	2018	58	301	28.7	3.76	8.50	4.74		<===
Show		23655	02 50 42 +55 53 44	STF 307 AC	2014	14	269	64.0	3.76	11.61	7.85
Show		23655	02 50 42 +55 53 44	SHJ 34 AE	2012	8	297	242.9	3.76	9.24	5.48
Show		23655	02 50 42 +55 53 44	WAL 19 AF	2013	7	25	57.7	3.76	11.44	7.68
Show			02 50 34 +55 53 44	WRD 1 CD	2015	14	116	5.2	11.61	12.70	1.09
Show			02 50 34 +55 53 44	FYM 161 CG	2015	6	229	15.8	11.61	14.00	2.39

Septuple system
7 estimated visually detectable stars in this system

OTHER CATALOGS AND DESIGNATIONS

Common name	Miram	Constellation	Perseus	SAO	23655	HIP	13268
Tycho2	3704-01332-1	Gaia DR2	454491381980370304	HD	17506	HR	834
GC	3390	ADS	2157	BD	BD+55 714	Bayer	Eta Persei
Bayer name	Eta Per	Flamsteed	15 Persei	Flamsteed name	15 Per	FK5	99
Distance	269.54	Distance ly	879.24	Bayer greek	η Per

WDS 02507+5554 STF 307 AB (Miram) : NOTES

discov_num	notes	refcode
STF 307	eta Per = 15 Per = Miram. A is a spectroscopic binary. B is BD+55@712.
	Mk III Limb-darkened diameter 5.381 +/- 0.055 mas.	MkT2003

REFERENCES

refcode	metd	author	reference
MkT2003	Km -	Mozurkewich, D., Armstrong, J.T., Hindsley, R., Quirrenbach, A., Hummel, C.A.,	2003AJ....126.2502M
MkT2003	+not	Hutter, D., Johnston, K.J., Hajian, A., Elias, N.M., II, Buscher, D., & Simon, R.
MkT2003		AJ 126, 2502, 2003

DISCOVERER

idgroup	discov	author
1	FYM	Fay, M.
28	SHJ	South, J. & Herschel, J.
45	STF	Struve, F.G.W.
78	WAL	Wallenquist, A.
98	WRD	Ward, I.W.

WDS HISTORIC DATA

coord_2000	discov_num	comp	epoch	obs	pa	sep	mag_pri	mag_sec	spectr	notes	coord_arcsec_2000
02507+5554	STF 307	AB	2007	48	302	28.6	3.76	8.50	M3Ib-IIa	N D	025041.79+555343.9
02507+5554	STF 307	AB	2008	49	295	31.2	3.76	8.50	M3Ib-IIa	N D	025041.79+555343.9
02507+5554	STF 307	AB	2011	49	302	28.6	3.76	8.50	M3Ib-IIa	N D	025041.79+555343.9
02507+5554	STF 307	AB	2012	50	303	28.8	3.76	8.50	M3Ib-IIa	N D	025041.79+555343.9
02507+5554	STF 307	AB	2017	54	301	30.4	3.76	8.50	M3Ib-IIa	N	025041.81+555343.8
02507+5554	STF 307	AB	2018	56	301	28.7	3.76	8.50	M3Ib-IIa	N	025041.81+555343.8

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

WDS 02507+5554 STF 307 AB (Miram) : VISUAL OBSERVATIONS REPORTS

Show	date	username	difficulty	separation	pa_estim	interest	notes
Show	23/11/03	Diego Vercelli	very easy	separated	60	do not miss it!
Show	23/11/03	Diego Vercelli	very easy	separated	300	very interesting

WDS 02507+5554 STF 307 AB (Miram) : MEASURES

No records found.

WDS 02507+5554 (Miram) : VIRTUAL EYEPIECE

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

WDS 02507+5554 (Miram) : ALADIN DSS IMAGE @ 02^h 50^m 41.81^s +55° 53' 43.8"

DSS color DSS blue 2MASS AllWISE GALEX SDSS9 XMM PanSTARRS

WDS 02507+5554 STF 307 AB (Miram) : NEIGHBORHOODS

Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show	name	coord_2000	discov#	comp	pa	sep	dist(')
Show	Miram	02507+5554	STF 307	AB	301	28.7
Show	Miram	02507+5554	STF 307	AC	269	64.0
Show	Miram	02507+5554	SHJ 34	AE	297	242.9
Show	Miram	02507+5554	WAL 19	AF	25	57.7
Show		02507+5554	WRD 1	CD	116	5.2	2
Show		02507+5554	FYM 161	CG	229	15.8	2
Show		02537+5542	KPP2192		179	18.1	28
Show		02480+5611	SKF 265	AB	237	4.3	28
Show		02480+5611	STI1940	AC	273	34.2	28
Show		02493+5639	STI1943		269	6.9	47
Show		02501+5640	A 972		103	1.0	47
Show		02507+5645	STI1946		102	11.0	51
Show		02555+5520	STI1949		226	5.5	53
Show		02563+5523	TDS2394		178	0.5	57
Show		02565+5526	LDS5401	AB	21	16.6	57
Show		02565+5526	CRC 4	AC	242	7.7	57
Show		02574+5539	A 1282		202	0.6	59
Show		02472+5645	STI1938		129	14.0	60
Show		02454+5634	MLR 599	Aa,Ab	7	0.2	60
Show		02454+5634	STF 297	AB	279	15.8	60
Show		02454+5634	STF 297	AC	108	28.6	60
Show		02454+5634	STF 297	BC	105	44.3	60
Show		02443+5626	MLB 114		13	6.3	63
Show		02577+5529	HEI 446		304	1.5	65
Show		02583+5543	STI1953		10	4.7	65
Show		02507+5700	SCA 5		37	16.0	67
Show		02447+5639	STI1935		36	13.8	68
Show		02518+5703	SCA 6		261	32.1	70
Show		02431+5526	STI1928		238	11.9	71
Show		02446+5643	MLR 598		80	0.8	71
Show		02442+5639	MZA 10	AB	354	12.1	71
Show		02442+5639	MZA 10	AC	336	4.8	71
Show		02444+5642	TDS2349		245	2.3	72
Show		02587+5532	HEI 447		355	1.9	72
Show		02495+5705	MCA 9		99	0.2	73
Show		02533+5709	STI1948		138	18.7	74
Show		02422+5536	TDS2341		280	1.2	74
Show		02461+5657	IPH 2		342	34.6	74
Show		02449+5456	ES 50		29	2.2	77
Show		02432+5643	STI1929		49	14.1	80
Show		02417+5529	A 1280		14	0.4	80
Show		03004+5554	MLB 156		175	3.6	83
Show		02441+5700	STI1931		59	10.6	87
Show		02456+5709	STI1937		30	5.9	88
Show		02443+5704	STF 293	AB	102	13.6	88
Show		02443+5704	STF 293	AC	335	79.6	88
Show		02443+5704	STF 293	AD	344	187.4	88
Show		02443+5704	FYM 354	AE	267	15.6	88
Show		02443+5704	FYM 354	AF	238	33.9	88
Show		02451+5708	STI1936		219	10.0	88
Show		02501+5722	STI1944		191	3.9	89

WDS 02507+5554 : COMPONENTS

	A	B	C	D	E	F
B	pa=317.0° sep=20.22"
C	pa=270.3° sep=68.13"	pa=255.1° sep=56.23"
D	pa=268.3° sep=65.51"	pa=252.1° sep=54.33"	pa=130.4° sep=3.47"
E	pa=312.8° sep=164.63"	pa=312.2° sep=144.48"	pa=334.7° sep=123.34"	pa=334.0° sep=126.51"
F	pa=14.5° sep=54.13"	pa=36.0° sep=46.52"	pa=57.5° sep=96.88"	pa=55.5° sep=95.92"	pa=113.8° sep=146.95"
G	pa=262.4° sep=75.53"	pa=247.9° sep=65.91"	pa=213.1° sep=12.33"	pa=229.2° sep=12.38"	pa=159.3° sep=130.22"	pa=234.8° sep=108.24"

02507+5554 A

Common name	Miram	Coord arcsec 2000	025041.81+555343.8	Mag	3.76	Spectral class	M3I (red)
PmRA	16.00	PmDE	-14.0	SAO	23655	HIP	13268
Tycho2	3704-01332-1	HD	17506	HR	834	GC	3390
BD	BD+55 714	Bayer	Eta Persei	Bayer name	Eta Per	Flamsteed	15 Persei
Flamsteed name	15 Per	FK5	99

Tycho2

Tycho2	3704-01332-1	Pflag		RAmdeg	42.67421136	DEmdeg	55.89549320
PmRA	17.4	PmDE	-14.8	E RAmdeg	4	E DEmdeg	4
E pmRA	0.6	E pmDE	0.8	EpRAm	1990.86	EpDEm	1991.16
Num	18	Q RAmdeg	1.0	Q DEmdeg	1.2	Q pmRA	1.0
Q pmDE	1.2	BTmag	5.939	E BTmag	0.014	VTmag	3.942
E VTmag	0.009	Prox	999	TYC	T	HIP	13268
CCDM		RAdeg	42.67413972	DEdeg	55.89552694	EpRA 1990	1.66
EpDE 1990	1.70	E RAdeg	3.5	E DEdeg	3.5	Posflg
Corr	-0.1

SAO

SAO	23655	DelFlag		RA1950		PmRA1950	0.0023
DE1950		PmDE1950	-0.011	Vmag	4	SpType	K0
Double code		Source	74	CatNum	99	DM	BD+55 714
DMcomp		BDsup		HD	17506	M HD	0
GC	3390	RA1950rad	0.72881567	DE1950rad	0.97196625	PmRA2000	0.0022
PmDE2000	-0.015

Hipparcos

Catalog	H	HIP	13268	Proxy		RAhms	02 50 41.79
DEdms	+55 53 43.9	Vmag	3.77	VarFlag	1	R Vmag	G
RAdeg	42.6741	DEdeg	55.8955	AstroRef		Plx	2.45
CCDM	02506+5553	N CCDM	I	Nsys	1	Ncomp	1
MultFlag		Source		Qual		M HIP
Theta		Rho		HD	17506	BD	BD+55 714
CD		CP		Dm number	+55 714	VIred	1.64
SpType	K3Ib comp SB	R SpType		Coord arcsec 2000	025041.79+555343.9

Hipparcos 2

HIP	13268	Sn	5	So	0	Nc	1
RArad	0.7448041834	DErad	0.9755610262	Plx	3.71	PmRA	16.23
PmDE	-13.54	E RArad	0.14	E DErad	0.14	E Plx	0.21
E pmRA	0.22	E pmDE	0.19	Hpmag	3.896	E Hpmag	0.0011
SHp	0.008	VA	2	BV	1.69	E BV	0.007
VI	1.64

02507+5554 B

Coord arcsec 2000	025040.17+555358.6		Mag	8.5		Spectral class	B9V (blue-white)		PmRA	16.00
PmDE	-14.0		Calc delta mag	4.74		Calc coord	yes

02507+5554 C

Coord arcsec 2000	025033.71+555344.1		Coord calc	025033.71+555344.1		Mag	11.61		Spectral class	OB (blue)
PmRA	1.00		PmDE	-2.0		Calc delta mag	7.85

02507+5554 D

Coord arcsec 2000	025034.02+555341.9		Mag	12.7		PmRA	1.00		PmDE	-1.0
Calc delta mag	8.94		Calc coord	yes

02507+5554 E

Coord arcsec 2000	025027.43+555535.6		Mag	9.24		Spectral class	IIa		PmRA	-4.00
PmDE	2.0		Calc delta mag	5.48		Calc coord	yes

02507+5554 F

Coord arcsec 2000	025043.42+555436.2		Mag	11.44		Spectral class	IIa		PmRA	0.00
PmDE	-4.0		Calc delta mag	7.68		Calc coord	yes

02507+5554 G

Coord arcsec 2000	025032.91+555333.8		Mag	14		PmRA	0.00		PmDE	-4.0
Calc delta mag	10.24		Calc coord	yes