40 Leonis

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Basic data :
* 40 Leo -- Variable Star of delta Sct type Origin of the objects types : (Ref) Object type as listed in the reference "Ref" (acronym) Object type linked to the acronym according to the original reference () Anterior to 2007, before we can link the objet type to a reference, or given by the CDS team in some particular cases Other object types: dS* (), * (*,AG,...), PM* (LSPM,LTT,...), IR (AKARI,IRAS,...), ** (**,WDS), V* (CSV,NSV), UV (TD1), X (EXO) Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) quality : flag of quality E >= 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference ICRS coord. (ep=J2000) : 10 19 44.16688 +19 28 15.2943 (Optical) [ 2.46 1.32 90 ] A 2007A&A...474..653V Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) quality : flag of quality E >= 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference FK5 coord. (ep=J2000 eq=2000) : 10 19 44.167 +19 28 15.29 [ 2.46 1.32 90 ] Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) quality : flag of quality E >= 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference FK4 coord. (ep=B1950 eq=1950) : 10 17 01.03 +19 43 31.2 [ 14.06 7.89 0 ] Syntax of coordinates is : "ra dec (wtype) [error ellipse] quality bibcode" : ra dec : right ascension and declination (unit and frame defined according to your Output Options) Grey values are increasing the original precision due to the computation of frame transformations (wtype) : wavelength class for the origin of the coordinates (Rad, mm, IR, Optical, UV, Xray, Gam) [error ellipse] : coordinates error major axis, minor axis (in mas at epoch defined in your output options), position angle (in degrees North to East of the specified coordinate frame) quality : flag of quality E >= 10" D : 1-10" (and some old data) C : 0.1-1" B : 0.01-0.1" + 2MASS, Tyc A : VLBI, Hipparcos bibcode : bibcode of the coordinates reference Gal coord. (ep=J2000) : 217.1223 +54.4764 [ 2.46 1.32 90 ] Syntax of proper motions is : "pm-ra pm-dec [error ellipse] quality bibcode" pm-ra : mu-ra*cos(dec) (expressed in the ICRS system in mas/yr) pm-dec : mu-dec (expressed in the ICRS system in mas/yr) [error ellipse] : error major axis and minor axis (in mas), orientation angle (in deg) quality : flag of quality (A=best quality -> E=worst quality, ~ =unknown quality) bibcode : bibcode of the proper motion reference Proper motions mas/yr : -231.73 -214.33 [0.28 0.15 0] A 2007A&A...474..653V Syntax of radial velocity (or/and redshift) is : "value [error] (wavelength) quality bibcode" value : radial velocity or/and redshift (Heliocentric frame) according to your Output Options (redshift may be not displayed if the data value is <0 and the database inside value is a radial velocity) [error] : error of the corresponding value displayed before (wavelength) : wavelength range of the measurement : Rad, mm, IR, Opt, UV, Xray, Gam or  '∼'(unknown) quality : flag of quality ( A=best quality -> E=worst quality, ~ =unknown quality) bibcode : bibcode of the value's origin Radial velocity / Redshift / cz : V(km/s) 5.90 [0.1] / z(~) 0.000020 [0.000000] / cz 5.90 [0.10]    A 2006AstL...32..759G Syntax of parallax is : 'value quality [error] bibcode' value : parallax value quality : flag of quality (A=best quality -> E=worst quality, ~ =unknown quality) [error] : mean error bibcode : bibcode of the parallax reference Parallaxes (mas): 46.80 [0.24] A 2007A&A...474..653V Spectral type is made of 3 parts: the spectral type, which is made of a temperature class, eventually a luminosity class (roman number) and/or spectral peculiarities; a quality letter: A=best quality->E=worst quality, ~ =unknown quality bibcode : bibcode of the spectral type reference Spectral type: F6IV-V C 2003AJ....126.2048G Syntax of fluxes (or magnitudes) is : "filter-name flux-value [error] quality MultVarFlags bibcode" filter-name : U, B, V, R, I, J, H, K, u, g, r, i, z flux-value : value of flux or magnitude [error] : error value quality : flag of quality of the flux value ( A=best quality -> E=worst quality, ~ =unknown quality) MultVarFlags : Mult is zero or one char (J) for joined photometry ; Var can be zero or two chars (V[0-4]) bibcode : bibcode of the flux reference Fluxes (7) : B 5.24 [~] C ~ V 4.80 [~] C ~ R 4.5 [~] E 2003AJ....125..984M I 4.3 [~] E 2003AJ....125..984M J 4.037 [0.292] D 2003yCat.2246....0C H 3.944 [0.230] D 2003yCat.2246....0C K 4.02 [0.31] D 2003yCat.2246....0C	SIMBAD with radius arcmin Interactive AladinLite view 2MASS DSS SDSSXMMIRACIRISGALEX VizieR photometry viewer    within radius arcsec The VizieR photometry tool allows for easy visualization of photometry points extracted around the Simbad position from photometry-enabled catalogues in VizieR. The search radius has to be specified by the user. It is currently limited to a maximum of 30 arcsec. It depends mostly on the precision or quality of the coordinates (SIMBAD and VizieR catalogs), the resolution of the images from which the sources were extracted, source extent, and source crowding. Suggestions are: crowded field: 0.5 to 1.5 arcsec, 3 arcsec otherwise; uncertain coordinates (SIMBAD quality E or coordinates without reference): 5 to 30 arsec (risky!).

* 40 Leo	GJ 388.1	2MASS J10194419+1928157	TD1 14746
** WNO 53A	GJ 9324	NLTT 24018	TYC 1423-1351-1
AG+19 1050	GPM 154.934625+19.471436	NSV 4822	UBV 9552
AKARI-IRC-V1 J1019440+192813	HD 89449	PLX 2421	UBV M 16125
ASCC 863627	HIC 50564	PLX 2421.00	USNO-B1.0 1094-00179749
BD+20 2466	HIP 50564	PPM 127314	uvby98 100089449
CSV 101116	HR 4054	Pul -3 660021	WDS J10197+1928A
EXO 1017.0+1943	IRAS 10169+1943	ROT 1556	YPAC 164
GC 14170	JP11 1930	SAO 99065	YZ 19 3992
GCRV 6500	LSPM J1019+1928	SKY# 19841
GEN# +1.00089449	LTT 12762	SV* ZI 811

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References (221 between 1850 and 2016) Simbad bibliographic survey began in 1950 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system). Follow new references on this object

number of references only bibcodes reference summary number of references by 1st author number of references by year number of references by journal from: to:

Measurements (20 types) :

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Data at NED - NASA/IPAC Extragalactic Database : 40 Leonis

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