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Sky-Tonight.com/Double stars/42 LMi
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Observation Settings

Or select it on the map:
This Earth map lets you select the observer’s location used to calculate the bearing and elevation of celestial objects. The selected point determines how the sky, rise and set times, and object positions are shown.
Your location: Columbus, United States
Timezone:
Latitude:
39.9612
Longitude:
-82.9988

42 LMi Position and Visibility Tonight

10459+3041

Where is 42 LMi right now?

42 LMi is located in the constellation Leo Minor. Although 42 LMi is currently 69° above the horizon, it is not visible because it is daytime.
Open the interactive guide to 42 LMi’s position and path tonight

42 LMi visibility on 2026-11-05

42 LMi Visible from before midnight until sunrise

42 LMi rise and set timetable

TimeElevation
Moonrise, 18.4% illuminated 22:1329°
42 LMi transit03:1881°
Moonset10:258°
42 LMi set11:16
Astronomical observing session begins13:57-17°
42 LMi rise19:16
Astronomical observing session ends00:3456°
Twilight end (−12°)01:0662°
Civil sunrise01:3868°
Sunrise02:0874°

Track 42 LMi position throughout the night

← 5 November 2026 →

Elevation (degrees)
Time
Altitude
Azimuth
Shift the map to change the time and observe 42 LMi changing position in the night sky.

Star system description: 42 LMi

A double or multiple star system in Leo Minor.

Pair AC (424.5″; magnitudes 5.34 and 8.31) is the binocular candidate in the catalog model. Actual resolution depends on magnification and stability.

The diagram uses the latest WDS measurements; north is up and east is right. Measurements may be from different years. Unconnected groups are arranged separately; close pairs may merge, and pairs without reliable geometry are omitted.

Technical details: 42 LMi

PropertyValue
System identifierWDS 10459+3041
Bayer / Flamsteed designation42 LMi
ConstellationLeo Minor
System typemultiple star system
Right ascension (RA)10h 45m 51s"
Declination (Dec)30° 40' 56s
ComponentAB
Primary magnitude5.34
Secondary magnitude7.78
Separation (arcseconds)196.4″
Position angle174°
Discovery year1825
Last observed2019
Spectral type (primary/secondary)A1Vn
Number of observations30

3 components are identified in WDS; this is not a count of resolved stars.

Components of 42 LMi

Each row is a separate WDS component pair. Measurements may come from different years.

ComponentPrimary magnitudeSecondary magnitudeSeparation (arcseconds)Position angleLast observed
AB5.347.78196.4″174°2019
AC (binoculars)5.348.31424.5″94°2016

Notes

  • S: Different parallax and proper motion indicate a non-physical pair.

Data source: Washington Double Star (WDS) Catalog. Maintained by the U.S. Naval Observatory; thanks to the WDS team.

Finder Chart for 42 LMi

Field of view 5.0°

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View on Sky Map

42 LMi Passage Through Night

Double-click to unlock the map.

Current position of 42 LMi

Time04:51
Latitude39.9612
Longitude-82.9988
Elevation69°
Azimuth251°
Here you can see the current position of 42 LMi on the map, as well as its positions for rise and set. This tool lets you track its movement throughout the night with accurate, up-to-date information.

When Is 42 LMi Visible Throughout the Year?

42 LMi will remain visible until July 8, when it moves too close to the Sun and temporarily disappears from the night sky. Time
DateFri, 6 November 2026
Astronomical observing session begins13:53
Astronomical observing session ends00:28
Astronomical observing duration11h 35m
Rise19:16
Set11:12
Elevation at transit81°
Transit time03:14
Equatorial coordinatesRA: 10h 45m 51s", Dec: 30° 40' 56s
Magnitude5
ConstellationLeo Minor
The graph illustrates the annual visibility pattern of 42 LMi, including its daily appearances and transit times. The vertical axis shows the hours of the day and the horizontal axis spans the year. The reddish area marks when the object is above the horizon, while the white line marks its daily transit.
You can also see when 42 LMi is visible throughout the year in a table with exact rise, transit, and set times for each date.

Astrometric and Physical Parameters of 42 LMi

Coordinates and Visibility

Right Ascension10h 45m 52s
Declination30° 40′ 57″
Magnitude5.34
ConstellationLeo Minor
Elevation68.9°
Azimuth251.2°