HD 10697

Summary

Visual magnitude: 6.29
Distance: 90.6 +/- 9.5 light years
Luminosity: 1.91 +/- 0.42 x Sun's luminosity

Position information for 01 ene 2000 0:00:00
(Julian day number 2451544.41667)

Apparent RA (epoch of date):	01h 44m 55.47s
Apparent Dec (epoch of date):	+20° 4' 57.3"
Constellation: Pisces

Altitude:	+50° 27' 6"
Azimuth:	251° 10' 20"

Rise:		14h 2m 4s
Transit:		21h 16m 46s
Set:		4h 35m 26s

Names and Catalog Numbers

Flamsteed number:	109 Piscium
Tycho catalog number:	TYC 1211-1730-1
PPM number:		PPM 91044
Henry Draper number:	HD 10697
DM number:		BD +19 0282 

Star Atlas Chart Numbers

Herald-Bobroff Astroatlas, Chart C-38
Millennium Star Atlas, Charts 193-194 (Vol I)
Sky Atlas 2000.0, Chart 4
Uranometria 2000 Chart 128, Vol 1

Tycho Catalog Data

Tycho Catalogue (ESA SP-1200, 1997).

Tycho Identifier/Proximity Flag

Catalog number: TYC 1211-1730-1

Proximity flag: None

Descriptor

V magnitude: 6.29
Source of V magnitude: Johnson UBV photometric system.

Astrometric Data

Equatorial coordinates (epoch J2000.0, ICRS)

RA:	01h 44m 55.8266s
Dec:	+20° 4' 59.332"

Standard errors of the equatorial coordinates (epoch J1991.25)

RA:	0.0039 arcsec
Dec:	0.0027 arcsec

Astrometric reference flag: This is a recommended astrometric reference star, having good Tycho astrometric quality, and not  recognised as double.

Trigonometric parallax: 0.03600 arcsec
Standard error of the parallax: 0.00420 arcsec

Proper motion components (epoch J1991.25, ICRS)
(Data is from the ACT catalog)

RA:	-0.04515 arcsec/yr
Dec:	-0.10630 arcsec/yr

Standard errors of the proper motion components

RA:	0.00083 arcsec
Dec:	0.00150 arcsec

Number of accepted data points: 73
Goodness-of-fit parameter, F2: 0.88

Hipparcos catalog number: 8159

Astrometric quality flag: 2 (very high).
Signal-to-noise ratio of the star image, Fs: 8.9

Source of astrometric data: Standard data processing.

Photometric Data

Mean Bt magnitude: 7.145
Standard error: 0.007

Mean Vt magnitude: 6.362
Standard error: 0.005

Source of photometric data: The Bt,Vt data are median values, rather than de-censored mean values (mainly relevant for bright stars with Bt<=8.5 mag and Vt<=8.0 mag).

Johnson B-V colour index: 0.695
Standard error: 0.007

Number of transits used in mean photometry: 75
Vt scatter, s: 0.033 mag
Vt magnitude at maximum luminosity: 6.33
Vt magnitude at minimum luminosity: 6.39

Previously known or suspected variability: None.

Variability of the Tycho measurements: None.

Unresolved duplicity status: An investigation was carried out on the Tycho data, but no indication of duplicity was found.

Cross-identification and Notes

PPM identifier: PPM 91044
HD identifier: HD 10697
DM identifier: BD +19 0282 








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