Double Star 04393+1555 Observation Details
04393+1555 Daily Motion
04393+1555 will be visible until April, 13, 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.
04393+1555 Visibility Timetable on September 03
04393+1555 Rise and Set Timetable
| Time | Elevation | |
| Moon Rise, 75.5% illuminated | 14:44 | -28° |
| Astrosession begin | 19:05 | -29° |
| 04393+1555 rise | 22:06 | |
| Moon Set | 23:57 | 22° |
| Astrosession end | 03:09 | 58° |
| Civil sunrise | 04:13 | 67° |
| Sunrise | 04:41 | 68° |
| 04393+1555 transit | 04:55 | 69° |
Track 04393+1555 Position Throughout the Night
← Wed, 3 September 2025 →
| Time | |
| Altitude | |
| Azimuth |
Shift the map to change the time and observe 04393+1555 changing position in the night sky.
Where is 04393+1555 right now?
04393+1555 is located in the constellation Taurus, at right ascension 04h 39m 16s" and declination 15° 55' 04s. At the current time, it is above the horizon at an altitude of 9 degrees toward the west-northwest from your location, with an apparent magnitude of 4.69.04393+1555 Star System Description
04393+1555 is Double Star System located in constellation Taurus at coordinates RA: 04h 39m 16s", Dec: 15° 55' 04s.
The primary component has a magnitude of 4.69, while the secondary component has a magnitude of 5.09. They are separated by 7.1 arcminutes at a position angle of 192 degrees. The brightness difference between the two components is 0.4 magnitudes, with the primary component being approximately 1.4 times brighter than the secondary.
The primary and secondary stars are both 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 4.69, while the secondary component has a magnitude of 5.09. They are separated by 7.1 arcminutes at a position angle of 192 degrees. The brightness difference between the two components is 0.4 magnitudes, with the primary component being approximately 1.4 times brighter than the secondary.
The primary and secondary stars are both 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 04393+1555
| Property | Value |
|---|---|
| Star System Identifier | 04393+1555 |
| System Type | Double Star System |
| Primary Star | sig 2 Tau |
| Right Ascension (RA) | 4.65458 (04h 39m 16s") |
| Declination (Dec) | 15.91797 (15° 55' 04s) |
| Magnitude (Primary) | 4.69 |
| Magnitude (Secondary) | 5.09 |
| Spectral Type (Primary/Secondary) | A5Vn+A4m (white/white) |
| Separation (Arcseconds) | 427.4 |
| Position Angle | 192° |
| Discovery Year | 1836 |
| Last Observed | 2014 |
| Primary Proper Motion (Ra, Dec) | +083-019 |
| Secondary Proper Motion (Ra, Dec) | +042-067 |
| Number of Observations | 42 |
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 sig 2 Tau
Double-click to unlock the map.
| Object name | 04393+1555 |
| Field of view | |
| Limiting magnitude | |
| 04393+1555 coordinates | 4.65458, 15.91797 |
| Center coordinates | 4.65458, 15.91797 |
04393+1555 Passage Through Night
Double-click to unlock the map.
Current position of 04393+1555
| Time | 22:54 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| 04393+1555 elevation | 9° |
| 04393+1555 Azimuth | -77° |
Here you can see the current position of the 04393+1555 on the map, as well as its positions for rise and set. This tool allows you to track the 04393+1555's movement throughout the night, providing you with accurate and up-to-date information.
Annual motion of 04393+1555
| Date | Thu, 4 September 2025 |
| Twighlight start | 19:03 |
| Twighlight end | 03:08 |
| Twighlight duration | 8h 5m |
| Rise | 22:02 |
| Set | 11:40 |
| Elevation at transit | 69° |
| Transit time | 04:51 |
| Equatorial coordinates | RA: 04h 39m 16s", Dec: 15° 55' 04s |
| Magnitude | 5 |
| Constellation | Taurus |
The graph illustrates the annual visibility pattern of a 04393+1555, 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 04393+1555 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.
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 04393+1555 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.
Astrometric & Physical Parameters of 04393+1555
Coordinates & Visibility
| Right Ascension | 4.65458° |
| Declination | 15.91797° |
| Magnitude | 4.69 |
| Constellation | Taurus |
| Elevation | 9.2° |
| Azimuth | -76.9° |