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A Complete Guide to the Solar System and the Night Sky
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public Observing fromLocation: Greenwich, United Kingdom edit_location_alt
SunriseRise: 6:57  
clear_day Transit: 12:11  
SunsetSet: 17:27
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All Constellations » Pictor » 

η1 Pictoris (eta1 Pictoris)

Altitude: -31.3°   Azimuth: 131.1°   Direction: South-East

η1 Pictoris is a double main-sequence star in the constellation of Pictor.

η1 Pictoris visual magnitude is 5.38. Because of its reltive faintness, η1 Pictoris should be visible only from locations with dark skyes, while it is not visible at all from skyes affected by light pollution.

The proper motion of η1 Pictoris is -0.044 arcsec per year in Right Ascension and 0.024 arcsec per year in Declination and the associated displacement for the next 10000 years is represented with the red arrow.

Image of η1 Pictoris (eta1 Pictoris) star
DSS2 image of η1 Pictoris. The red arrow shows the motion of η1 Pictoris during the next 10000 years (-7.33 arcmin in Right Ascension and 4.00 arcmin in declination);

Key facts about η1 Pictoris

5.38
Main-sequence

η1 Pictoris (eta1 Pictoris) is below the horizon from Greenwich, United Kingdom edit_location_alt.

Altitude: -31.3°
Azimuth: 131.1°
Direction: South-East

Celestial coordinates and finder chart of η1 Pictoris

η1 Pictoris is situated south of the celestial equator, as such, it is more easily visible from the southern hemisphere. Celestial coordinates for the J2000 equinox as well as galactic coordinates of η1 Pictoris are provided in the following table:

05h 02m 48s
-49° 09’ 05”
255.64°
-37.63°
Pictor

The simplified sky map below shows the position of η1 Pictoris in the sky:

Finder chart η1 Pictoris (eta1 Pictoris) star
Simplified finder chart for η1 Pictoris (eta1 Pictoris).

Visibility of η1 Pictoris from your location

Location: Greenwich, United Kingdom edit_location_alt
Latitude: 51° 28’ 47” N
Longitude: 0° 00’ 00” E
Timezone: Europe/London

η1 Pictoris (eta1 Pictoris) is currently not visible from Greenwich, United Kingdom edit_location_alt

Distance of η1 Pictoris from the Sun and relative movement

η1 Pictoris is distant 85.36 light years from the Sun and it is moving far from the Sun at the speed of 21 kilometers per second.

26.18 pc
85.36 ly
21 km/s
-0.044 arcsec/year
0.024 arcsec/year

Spectral properties of η1 Pictoris

η1 Pictoris belongs to spectral class F2 and has a luminosity class of V corresponding to a main-sequence star.

3.29
F2V
6776K

The red dot in the diagram below shows where η1 Pictoris is situated in the Hertzsprung–Russell diagram.

HR Diagram
H-R diagram showing the position of η1 Pictoris. Attribution: Richard Powell / CC BY-SA

η1 Pictoris star system properties

η1 Pictoris is a visual double star which can be observed only with the help of very large telescopes. The table below shows key information about the η1 Pictoris double sysyem:

5.38
12.98
7.6
10.4 arcsec

Alternative designations of η1 Pictoris

η1 Pictoris
(eta1 Pictoris)
SAO217140
SAO217140