18015+2136 Position and Visibility Tonight
Where is 18015+2136 right now?
18015+2136 is located in the constellation Hercules. It is currently below the horizon and is not visible from your location.
Twilight begins at 18:12 local time. At that moment, 18015+2136 will be 71° above the horizon toward the south-west.
Twilight begins at 18:12 local time. At that moment, 18015+2136 will be 71° above the horizon toward the south-west.
18015+2136 visibility on 2026-09-17
18015+2136 Visible from sunset until early morning
18015+2136 rise and set timetable
| Time | Elevation | |
Moonrise, 24% illuminated  | 10:43 | 5° |
| Sunset | 17:12 | 74° |
| 18015+2136 transit | 17:25 | 74° |
| Civil sunset | 17:39 | 74° |
| Twilight start (−12°) | 18:10 | 71° |
| Astronomical observing session begins | 18:41 | 67° |
| Moonset | 20:07 | 52° |
| 18015+2136 set | 00:34 | |
| Astronomical observing session ends | 03:23 | -25° |
| 18015+2136 rise | 10:12 |
Track 18015+2136 position throughout the night
← 17 September 2026 →
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Star system description: 18015+2136
System 18015+2136 — double star system, is located in the constellation Hercules, at coordinates RA: 18h 01m 30s", Dec: 21° 35' 44s.
The primary and secondary magnitudes are 4.85 and 5.20. Their separation is 6.1 arcseconds, at position angle 266°. The magnitude difference is 0.35 magnitudes; the primary is approximately 1.4 times brighter.
The following technical data come from the Washington Double Star Catalog.
V: Proper motion indicates a physical pair.
The primary and secondary magnitudes are 4.85 and 5.20. Their separation is 6.1 arcseconds, at position angle 266°. The magnitude difference is 0.35 magnitudes; the primary is approximately 1.4 times brighter.
The following technical data come from the Washington Double Star Catalog.
Technical details: 18015+2136
| Property | Value |
|---|---|
| System identifier | 18015+2136 |
| System type | double star system |
| Primary star | 95 Her |
| Right ascension (RA) | 18.02511 (18h 01m 30s") |
| Declination (Dec) | 21.59578 (21° 35' 44s) |
| Primary magnitude | 4.85 |
| Secondary magnitude | 5.20 |
| Spectral type (primary/secondary) | A5IIIn |
| Separation (arcseconds) | 6.1 |
| Position angle | 266° |
| Discovery year | 1780 |
| Last observed | 2023 |
| Primary proper motion (RA, Dec) | +008+040 |
| Secondary proper motion (RA, Dec) | +008+039 |
| Number of observations | 284 |
Notes
Data source: Washington Double Star (WDS) Catalog. Maintained by the U.S. Naval Observatory; thanks to the WDS team.
Finder Chart for 18015+2136
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| Object name | 18015+2136 |
| Field of view | |
| Limiting magnitude | |
| 18015+2136 coordinates | 18.02511, 21.59578 |
| Center coordinates | 18.02511, 21.59578 |
18015+2136 Passage Through Night
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Current position of 18015+2136
| Time | 04:44 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Elevation | -30° |
| Azimuth | 349° |
Here you can see the current position of 18015+2136 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 18015+2136 Visible Throughout the Year?
18015+2136 will remain visible until December 4, when it moves too close to the Sun and temporarily disappears from the night sky.
| Date | Thu, 17 September 2026 |
| Astronomical observing session begins | 18:37 |
| Astronomical observing session ends | 03:17 |
| Astronomical observing duration | 9h 40m |
| Rise | 10:15 |
| Set | 00:34 |
| Elevation at transit | 74° |
| Transit time | 17:25 |
| Equatorial coordinates | RA: 18h 01m 30s", Dec: 21° 35' 44s |
| Magnitude | 5 |
| Constellation | Hercules |
The graph illustrates the annual visibility pattern of 18015+2136, 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 18015+2136 is visible throughout the year in a table with exact rise, transit, and set times for each date.
You can also see when 18015+2136 is visible throughout the year in a table with exact rise, transit, and set times for each date.
Astrometric and Physical Parameters of 18015+2136
Coordinates and Visibility
| Right Ascension | 18h 01m 30s |
| Declination | 21° 35′ 45″ |
| Magnitude | 4.85 |
| Constellation | Hercules |
| Elevation | -30.2° |
| Azimuth | 348.6° |