V443 Her

CONFIRMED MILKY WAY

Constellation
Hercules

Equatorial coordinates
α = 18 22 07.855
δ = +23 27 19.937

Galactic coordinates
l = 51.2313°
b = 16.5958°

Suspected	1958^Ref
Confirmed	1958^Ref
Symbiotic IR type	S^Ref
Hot component type	shell-burning^Ref
Outbursts	-

Identifiers

V443 Her	IRAS 18200+2325	GSC2.4.2 N210000381	AAVSO 000-BCC-148
SIMBAD EM* MWC 603	Pan-STARRS 136142755325957149	SAO -	VSX 15254
GAIA DR3 4530485302312104192	SkyMapper -	WRAY -	GCVS V0443 Her
2MASS J18220785+2327199	HIP -	Hen -	BD -
WISE J182207.84+232719.9	TYC 2093-472-1	ESO -	HD 342007

Symbiotic Catalogs

Bidelman (1954)	-	Allen (1984)	V443 Her (Conf.)	Belzcyński et al. (2001)	V443 Her (Conf.)
Gaposchkin (1957)	-	Kenyon (1986)	V443 Her (Conf.)	Akras et al. (2019)	V443 Her (Conf.)
Boyarchuk (1969)	V443 Her (Conf.)	Vaidis (1988, 1991)	V443 Her (Conf.)

Position

Right ascension (°)	275.5327^Ref	Parallax (mas)	0.323±0.021^Ref	Reddening E(B-V) (mag)	0.13±0.01^Ref ^{, Note}
Declination (°)	23.4555^Ref	Distance (kpc)	2.6^Ref, 2.2^Ref, 2.2^Ref 2.72^Ref ^{, Note}, 2.65^Ref ^{, Note}
Galactic longitude (°)	51.2313^Ref	Proper motion in α (mas/yr)	0.05±0.02^Ref
Galactic latitude (°)	16.5958^Ref	Proper motion in δ (mas/yr)	0.12±0.02^Ref

Observations

X-Ray	No^Ref	IR type	S^Ref	Radio	Yes^Ref
X-Ray type	-	J (mag)	6.60^Ref	Flickering	No^Ref
GALEX FUV (mag)	-	H (mag)	5.65^Ref	Outbursts	-
GALEX NUV (mag)	-	K (mag)	5.32^Ref	Outburst type	-
IUE	No^Ref	WISE W1 (mag)	5.26^Ref	Jets	-
FUSE	No^Ref	WISE W2 (mag)	5.12^Ref	Resolved nebula	No^Ref
U (mag)	-	WISE W3 (mag)	4.96^Ref	IPmax (eV)	97.1 (UV)^Ref, 54.4^Ref
B (mag)	12.29^Ref	WISE W4 (mag)	4.47^Ref	[O III] lines	Yes^Ref
V (mag)	11.44^Ref	IRAS 12μm (Jy)	0.34^Ref	He II lines	Yes^Ref
R (mag)	-	IRAS 25μm (Jy)	0.25^Ref	[Fe VII] lines	No^Ref
I (mag)	-	IRAS 60μm (Jy)	0.40^Ref	O VI lines	No^Ref
BP (mag)	11.46^Ref	IRAS 100μm (Jy)	1.34^Ref
G (mag)	9.93^Ref	AKARI S09 (Jy)	0.55^Ref
RP (mag)	8.68^Ref	AKARI S18 (Jy)	0.23^Ref

Orbit

Orbital period (days)	598±29^Ref, 599.4±2.1^Ref	γ velocity (km/h)	-49.2±0.3^Ref, -55.5±0.13^Ref	Size of giant’s orbit (AU)	0.18^Ref, 0.14^Ref
Eccentricity	0^Ref, 0^Ref	RV of giant (km/h)	3.2±0.6^Ref, 2.52±0.21^Ref	Separation (AU)	-
Inclination (°)	20-40^Ref, 18^Ref, 80^Ref	Inferior conj. of giant (JD)	2450347.2	Mass function	0.0021^Ref, 0.001^Ref
Eclipses	No^Ref			Mass ratio	2^Ref
Orbital ephemeris	Max (UBV) = 2445125±40 + 598±29 x E^Ref

Cool component

Spectral type	M3 III^Ref, M5.1 III^Ref, M5 III^Ref, M5.5 III^Ref	Mass (M_⊙)	2.5^Ref, 1.4^Ref	Pulsation	Yes^Ref
Eff. temperature (K)	3300^Ref	Radius (R_⊙)	110^Ref, 130^Ref	Type	SR^Ref
IR type	S^Ref	Luminosity (L_⊙)	1500^Ref, 1800^Ref	Pulsation period (days)	59±1^Ref
Metallicity [Fe/H]	-0.02±0.08^Ref			Pulsation ephemeris	-

Hot component

Type/Spectral type	WD^Ref	Mass (M_⊙)	0.42^Ref, 0.7^Ref	Spin period (min)	-
Shell-burning/Accreting-only	shell-burning^Ref	Radius (R_⊙)	0.15^Ref	Accretion disk	-
Eff. temperature (K)	80000^Ref, 80000^Ref	Luminosity (L_⊙)	1000^Ref
Lower limit (K)	-
Upper limit (K)	-

Links

SIMBAD CDS Portal ARAS Database

Notes

In Kolotilov & Yudin (1994), it was suggested that the object is an eclipsing binary. However, this was later disputed by Kolotilov et al. (1995) and subsequent works.

References

Dobrzycka, D., Kenyon, S. J., Mikołajewska, J., 1993, AJ, 106, 284, 1993AJ....106..284D
Fekel, F. C., Hinkle, K. H., Joyce, R. R. et al., 2000, AJ, 120, 6, 3255, 2000AJ....120.3255F
Gromadzki, M., Mikołajewska, J., Soszyński, I., 2013, AcA, 63, 4, 405, 2013AcA....63..405G
Kenyon, S. J., Fernandez-Castro, T., 1987, AJ, 93, 938, 1987AJ.....93..938K
Kolotilov, E. A., Munari, U., Popova, A. A. et al., 1998, AstL, 24, 1, 34, 1998AstL...24...34K
Kolotilov, E. A., Munari, U., Yudin, B. F., 1995, A&A, 293, 815, 1995A&A...293..815K
Kolotilov, E. A., Yudin, B. F., 1994, AstL, 20, 3, 347, 1994AstL...20..347K
Luna, G. J. M., Sokoloski, J. L., Mukai, K. et al., 2013, A&A, 559, A6, 2013A&A...559A...6L
Merc, J., Beck, P. G., Mathur, S. et al., 2023, arXiv, arXiv:2312.16126, 2023arXiv231216126M
Mürset, U., Schmid, H. M., 1999, A&AS, 137, 473, 1999A&AS..137..473M
Skopal, A., 1996, Ap&SS, 238, 2, 285, 1996Ap&SS.238..285S
Skopal, A., 2005, A&A, 440, 3, 995, 2005A&A...440..995S
Tifft, W. G., Greenstein, J. L., 1958, ApJ, 127, 160, 1958ApJ...127..160T

Last updated: January 13, 2024