Double Star 00318+5431 Position and Visibility Tonight
Where is 00318+5431 right now?
00318+5431 is located in the constellation Cassiopeia. Although it is currently above the horizon at an altitude of 65 degrees, 00318+5431 is not visible because it is daytime.
Twilight begins at 03:26 local time, and at that moment, 00318+5431 will appear at an altitude of 65 degrees toward the northwest.
Twilight begins at 03:26 local time, and at that moment, 00318+5431 will appear at an altitude of 65 degrees toward the northwest.
00318+5431 Visibility on June 27
00318+5431 is visible during the evening hours
00318+5431 Rise and Set Timetable
| Time | Elevation | |
| 00318+5431 is always above the horizon | ||
Moon Rise, 91.9% illuminated  | 16:14 | 3° |
| Sunset | 18:31 | 3° |
| Civil sunset | 19:03 | 5° |
| Twighlight start | 19:42 | 7° |
| Astrosession begin | 20:26 | 10° |
| 00318+5431 is always above the horizon | ||
| Moon Set | 01:36 | 49° |
| Astrosession end | 01:55 | 52° |
| Twighlight end | 02:39 | 58° |
| Civil sunrise | 03:18 | 63° |
| Sunrise | 03:50 | 67° |
| 00318+5431 transit | 05:16 | 73° |
Track 00318+5431 Position Throughout the Night
← Sat, 27 June 2026 →
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| Altitude | |
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Shift the map to change the time and observe 00318+5431 changing position in the night sky.
00318+5431 Star System Description
00318+5431 is Double Star System located in constellation Cassiopeia at coordinates RA: 00h 31m 46s", Dec: 54° 31' 20s.
The primary component has a magnitude of 5.33, while the secondary component has a magnitude of 5.62. They are separated by 0.3 arcseconds at a position angle of 122 degrees. The brightness difference between the two components is 0.29 magnitudes, with the primary component being approximately 1.3 times brighter than the secondary.
The primary and secondary stars are both blue-white in color
Below is a table with star system details from the Washington Double Star (WDS) Catalog. This catalog is a comprehensive source of information on double and multiple star systems, providing key data on the positions, magnitudes, and separations of stellar components.
The primary component has a magnitude of 5.33, while the secondary component has a magnitude of 5.62. They are separated by 0.3 arcseconds at a position angle of 122 degrees. The brightness difference between the two components is 0.29 magnitudes, with the primary component being approximately 1.3 times brighter than the secondary.
The primary and secondary stars are both blue-white in color
Below is a table with star system details from the Washington Double Star (WDS) Catalog. This catalog is a comprehensive source of information on double and multiple star systems, providing key data on the positions, magnitudes, and separations of stellar components.
Technical Details of Star System 00318+5431
| Property | Value |
|---|---|
| Star System Identifier | 00318+5431 |
| System Type | Double Star System |
| Primary Star | lam Cas |
| Right Ascension (RA) | 0.52953 (00h 31m 46s") |
| Declination (Dec) | 54.52231 (54° 31' 20s) |
| Magnitude (Primary) | 5.33 |
| Magnitude (Secondary) | 5.62 |
| Spectral Type (Primary/Secondary) | B8V+B9V (blue-white/blue-white) |
| Separation (Arcseconds) | 0.3 |
| Position Angle | 122° |
| Discovery Year | 1845 |
| Last Observed | 2020 |
| Primary Proper Motion (Ra, Dec) | +041-015 |
| Secondary Proper Motion (Ra, Dec) | |
| Number of Observations | 276 |
The data presented in this table is sourced from the Washington Double Star (WDS) Catalog, a comprehensive repository of double and multiple star system information maintained by the U.S. Naval Observatory. We thank the WDS team for their continued efforts in providing accurate and detailed astronomical data.
Finder Chart for lam Cas
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| Object name | 00318+5431 |
| Field of view | |
| Limiting magnitude | |
| 00318+5431 coordinates | 0.52953, 54.52231 |
| Center coordinates | 0.52953, 54.52231 |
00318+5431 Passage Through Night
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Current position of 00318+5431
| Time | 03:26 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| 00318+5431 elevation | 65° |
| 00318+5431 Azimuth | -39° |
Here you can see the current position of the 00318+5431 on the map, as well as its positions for rise and set. This tool allows you to track the 00318+5431's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of 00318+5431
00318+5431 will be visible until March, 15, when it will move too close to the Sun. During this time, its proximity to the Sun will cause it to disappear from the night sky, making it unobservable for a while.
| Date | Sun, 28 June 2026 |
| Twighlight start | 20:21 |
| Twighlight end | 01:50 |
| Twighlight duration | 5h 29m |
| Rise | 00318+5431 is always up |
| Set | 00318+5431 is always up |
| Elevation at transit | 73° |
| Transit time | 05:12 |
| Equatorial coordinates | RA: 00h 31m 46s", Dec: 54° 31' 20s |
| Magnitude | 5 |
| Constellation | Cassiopeia |
The graph illustrates the annual visibility pattern of a 00318+5431, providing a comprehensive overview of its daily appearances and transit times throughout the year.
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the 00318+5431 is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.
You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.
The graph is structured with the vertical axis showing the hours of the day, ranging from 12 AM to 12 AM the next day, while the horizontal axis spans each day of the year.
The reddish shaded area indicates the periods when the 00318+5431 is above the horizon, visible to observers. The white line marks the times when the celestial object reaches its highest point in the sky each day, known as the transit.
You can also view detailed visibility information in a dedicated table, including exact rise, transit, and set times for each date.
Astrometric & Physical Parameters of 00318+5431
Coordinates & Visibility
| Right Ascension | 0.52953° |
| Declination | 54.52231° |
| Magnitude | 5.33 |
| Constellation | Cassiopeia |
| Elevation | 64.6° |
| Azimuth | -38.7° |