[RP2006] 698

SUSPECTED LMC   Equatorial coordinates α = 83.377143 ± 0.347400 | 05 33 30.514386 δ = -69.874165 ± 0.382500 | -69 52 26.992786   Constellation Dorado Symbiotic IR Type   Spectral Type B3IIIe Magnitude range (V)   Outbursts No

---

Identifiers

[RP2006] 698	GSC –	TYC –	WRAY –
SIMBAD [RP2006] 698	HIP –	SAO –	Hen –
BD –	IRAS –	GAIA DR2 4657999647407740672	ESO –
HD –	2MASS J05333052-6952270	WISE J053330.56-695227.1	AAVSO –

---

Position

Right ascension (°)	83.377143 ± 0.347400refGaia Collaboration, Brown, A. G. A., Vallenari, A., et al., 2018, A&A, 616, A1, 2018A&A…616A…1G	Parallax (mas)	–	Reddening E(B-V) (mag)	0.975 ± 0.231refSchlafly, E. F., Finkbeiner, D. P., 2011, ApJ, 737, 103, 2011ApJ…737..103S
Declination (°)	-69.8741645 ± 0.382500refGaia Collaboration, Brown, A. G. A., Vallenari, A., et al., 2018, A&A, 616, A1, 2018A&A…616A…1G	Distance (kpc)	49.97 ± 0.19refPietrzyński, G., Graczyk, D., Gieren, W., et al., 2013, Nature, 495, 76, 2013Natur.495…76P
Galactic longitude (°)	280.436801 ± 0.382500refGaia Collaboration, Brown, A. G. A., Vallenari, A., et al., 2018, A&A, 616, A1, 2018A&A…616A…1G	Proper motion in α (mas/yr)	3.857 ± 0.683refGaia Collaboration, Brown, A. G. A., Vallenari, A., et al., 2018, A&A, 616, A1, 2018A&A…616A…1G
Galactic latitude (°)	-32.023949 ± 0.347400refGaia Collaboration, Brown, A. G. A., Vallenari, A., et al., 2018, A&A, 616, A1, 2018A&A…616A…1G	Proper motion in δ (mas/yr)	0.655 ± 1.028refGaia Collaboration, Brown, A. G. A., Vallenari, A., et al., 2018, A&A, 616, A1, 2018A&A…616A…1G

---

Observations

U (mag)		X-Ray		Flickering
B (mag)	16.04refReid, W. A., Parker, Q. A., 2012, MNRAS, 425, 355, 2012MNRAS.425..355R	X-Ray type		Outbursts	No
V (mag)	16.61refReid, W. A., Parker, Q. A., 2012, MNRAS, 425, 355, 2012MNRAS.425..355R	IUE	No	Type
R (mag)	16.15refReid, W. A., Parker, Q. A., 2012, MNRAS, 425, 355, 2012MNRAS.425..355R	IRAS flux at 12 μm (Jy)		IPmax (eV)
I (mag)	16.47refReid, W. A., Parker, Q. A., 2012, MNRAS, 425, 355, 2012MNRAS.425..355R	IRAS flux at 25 μm (Jy)		OVI lines
G (mag)	19.36refGaia Collaboration, Brown, A. G. A., Vallenari, A., et al., 2018, A&A, 616, A1, 2018A&A…616A…1G	IRAS flux at 60 μm (Jy)
J (mag)	14.68refCutri, R. M., Skrutskie, M. F., van Dyk, S., et al., 2012, VizieR Online Data Catalog: II/281,2012yCat.2281….0C	IRAS flux at 100 μm (Jy)
H (mag)	12.94refCutri, R. M., Skrutskie, M. F., van Dyk, S., et al., 2012, VizieR Online Data Catalog: II/281,2012yCat.2281….0C	WISE W1 (mag)	10.87refCutri, R. M., et al., 2014, I II/328, 2014yCat.2328….0C
K (mag)	12.06refCutri, R. M., Skrutskie, M. F., van Dyk, S., et al., 2012, VizieR Online Data Catalog: II/281,2012yCat.2281….0C	WISE W2 (mag)	10.70refCutri, R. M., et al., 2014, I II/328, 2014yCat.2328….0C
L (mag)		WISE W3 (mag)	6.89refCutri, R. M., et al., 2014, I II/328, 2014yCat.2328….0C
		WISE W4 (mag)	3.72refCutri, R. M., et al., 2014, I II/328, 2014yCat.2328….0C
		Radio
		Radio flux (mJy)

---

Orbit

Orbital period (days)		γ velocity (km/h)		Size of giant’s orbit (AU)
Eccentricity		RV of giant (km/h)		Separation (AU)
Inclination (°)		Inferior conj. of giant (JD)		Mass function
Ephemeris type				Mass ratio
Ephemeris T0 (JD)

---

Cool component

Spectral type	B3III[e]refReid, W. A., Parker, Q. A., 2012, MNRAS, 425, 355, 2012MNRAS.425..355R	Mass (M⊙)		Pulsation
Eff. temperature (K)		Radius (R⊙)		Type
IR type		Luminosity (L⊙)		Pulsation period (days)
Metallicity [Fe/H]				Ephemeris type
				Ephemeris T0 (JD)

---

Hot component

Type/Spectra		Mass (M⊙)		Spin period (min)
Eff. temperature (K)		Radius (R⊙)		Accretion disk
Lower limit (K)		Luminosity (L⊙)
Upper limit (K)

---

Links

SIMBAD     CDS Portal

---

Notes

Reid & Parker (2006) classified the star as a possible symbiotic star. Later, Reid & Parker (2012) classified the star as B giant. Miszalski et al. (2011) classified the object as HII region and according to their analysis, VMC and SAGE data are consistent with the dusty environment. Finally, Reid (2014) classified the object as an emission line star. 

---

References

• Miszalski, B., Napiwotzki, R., Cioni, M. R. L., et al., 2011, A&A, 531, A157, 2011A&A…531A.157M
• Reid, W. A., Parker, Q. A., 2006, MNRAS, 373, 521, 2006MNRAS.373..521R
• Reid, W. A., Parker, Q. A., 2012, MNRAS, 425, 355, 2012MNRAS.425..355R
• Reid, W. A., 2014, MNRAS, 438, 2642,  2014MNRAS.438.2642R

Last updated: May 11, 2019 @ 10:04 am