Mesarthim Position and Visibility Tonight
Where is Mesarthim right now?
Mesarthim is located in the constellation Aries. It is currently above the horizon at an altitude of 36° toward the north-west, with an apparent magnitude of 4.52.
Mesarthim visibility on 2026-10-27
Mesarthim Visible from sunset until sunrise
Mesarthim rise and set timetable
| Time | Elevation | |
| Mesarthim rise | 18:33 | |
| Sunset | 18:49 | 4° |
| Civil sunset | 19:11 | 9° |
| Twilight start (−12°) | 19:36 | 15° |
Moonrise, 98.9% illuminated  | 19:51 | 19° |
| Astronomical observing session begins | 20:01 | 21° |
| Mesarthim transit | 00:34 | 72° |
| Astronomical observing session ends | 05:35 | 14° |
| Twilight end (−12°) | 06:00 | 8° |
| Civil sunrise | 06:25 | 2° |
| Mesarthim set | 06:34 | |
| Moonset | 08:26 | -26° |
Track Mesarthim position throughout the night
← 27 October 2026 →
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| Altitude | |
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Shift the map to change the time and observe Mesarthim changing position in the night sky.
Star system description: Mesarthim
A double or multiple star system in Aries.
Pair BC (214″; magnitudes 4.58 and 8.63) 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: Mesarthim
| Property | Value |
|---|---|
| System identifier | WDS 01535+1918 |
| Bayer / Flamsteed designation | γ Ari |
| Constellation | Aries |
| System type | multiple star system |
| Right ascension (RA) | 01h 53m 31s" |
| Declination (Dec) | 19° 17' 38s |
| Component | AB |
| Primary magnitude | 4.52 |
| Secondary magnitude | 4.58 |
| Separation (arcseconds) | 7.3″ |
| Position angle | 1° |
| Discovery year | 1800 |
| Last observed | 2024 |
| Spectral type (primary/secondary) | A2IV+B9V |
| Number of observations | 407 |
4 components are identified in WDS; this is not a count of resolved stars.
Components of Mesarthim
Each row is a separate WDS component pair. Measurements may come from different years.
| Component | Primary magnitude | Secondary magnitude | Separation (arcseconds) | Position angle | Last observed |
|---|---|---|---|---|---|
| AB | 4.52 | 4.58 | 7.3″ | 1° | 2024 |
| AC | 4.52 | 8.63 | 214.9″ | 81° | 2015 |
| BC (binoculars) | 4.58 | 8.63 | 214″ | 83° | 2015 |
| CD | 8.63 | 11.80 | 1.7″ | 17° | 2021 |
Notes
- T: Matching parallax and similar proper motion indicate a physical pair.
Data source: Washington Double Star (WDS) Catalog. Maintained by the U.S. Naval Observatory; thanks to the WDS team.
Finder Chart for Mesarthim
Mesarthim Passage Through Night
Double-click to unlock the map.
Current position of Mesarthim
| Time | 04:01 |
| Latitude | 1.35208 |
| Longitude | 103.82 |
| Elevation | 36° |
| Azimuth | 293° |
Here you can see the current position of Mesarthim 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 Mesarthim Visible Throughout the Year?
Mesarthim will remain visible until March 5, when it moves too close to the Sun and temporarily disappears from the night sky.
| Date | Wed, 28 October 2026 |
| Astronomical observing session begins | 19:55 |
| Astronomical observing session ends | 05:28 |
| Astronomical observing duration | 10h 33m |
| Rise | 18:29 |
| Set | 06:31 |
| Elevation at transit | 72° |
| Transit time | 00:30 |
| Equatorial coordinates | RA: 01h 53m 31s", Dec: 19° 17' 38s |
| Magnitude | 5 |
| Constellation | Aries |
The graph illustrates the annual visibility pattern of Mesarthim, 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 Mesarthim is visible throughout the year in a table with exact rise, transit, and set times for each date.
You can also see when Mesarthim is visible throughout the year in a table with exact rise, transit, and set times for each date.
Astrometric and Physical Parameters of Mesarthim
Coordinates and Visibility
| Right Ascension | 01h 53m 32s |
| Declination | 19° 17′ 39″ |
| Magnitude | 4.52 |
| Constellation | Aries |
| Elevation | 36.1° |
| Azimuth | 293.1° |