16278-0822 Position and Visibility Tonight
Where is 16278-0822 right now?
16278-0822 is located in the constellation Ophiuchus. It is currently below the horizon and is not visible from your location.
Twilight begins at 18:57 local time. At that moment, 16278-0822 will be 42° above the horizon toward the south-west.
Twilight begins at 18:57 local time. At that moment, 16278-0822 will be 42° above the horizon toward the south-west.
16278-0822 visibility on 2026-08-18
16278-0822 Visible from sunset until early morning
16278-0822 rise and set timetable
| Time | Elevation | |
Moonrise, 21% illuminated  | 09:49 | -29° |
| 16278-0822 rise | 12:16 | |
| 16278-0822 transit | 17:49 | 44° |
| Sunset | 17:55 | 44° |
| Civil sunset | 18:24 | 44° |
| Twilight start | 18:57 | 42° |
| Astronomical observing session begins | 19:32 | 38° |
| Moonset | 20:26 | 31° |
| 16278-0822 set | 23:22 | |
| Astronomical observing session ends | 02:51 | -41° |
Track 16278-0822 Position Throughout the Night
← 18 August 2026 →
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Star system description: 16278-0822
System 16278-0822 — quadruple star system, is located in the constellation Ophiuchus, at coordinates RA: 16h 27m 48s", Dec: -8° 22' 18s.
The primary and secondary magnitudes are 4.71 and 9.32. Their separation is 16.7 arcminutes, at position angle 272°. The magnitude difference is 4.61 magnitudes; the primary is approximately 69.8 times brighter.
The primary is white; the secondary is orange.
The following technical data come from the Washington Double Star Catalog.
The primary and secondary magnitudes are 4.71 and 9.32. Their separation is 16.7 arcminutes, at position angle 272°. The magnitude difference is 4.61 magnitudes; the primary is approximately 69.8 times brighter.
The primary is white; the secondary is orange.
The following technical data come from the Washington Double Star Catalog.
Technical details: 16278-0822
| Property | Value |
|---|---|
| System identifier | 16278-0822 |
| System type | quadruple star system |
| Primary star | ups Oph |
| Right ascension (RA) | 16.46339 (16h 27m 48s") |
| Declination (Dec) | -8.37169 (-8° 22' 18s) |
| Primary magnitude | 4.71 |
| Secondary magnitude | 9.32 |
| Spectral type (primary/secondary) | A3m+K4V (white/orange) |
| Separation (arcseconds) | 999.9 |
| Position angle | 272° |
| Discovery year | 1938 |
| Last observed | 2022 |
| Primary proper motion (RA, Dec) | -067-013 |
| Secondary proper motion (RA, Dec) | |
| Number of observations | 29 |
Components of 16278-0822
| Component | Magnitude | Separation (arcseconds) | Position angle |
| AB | 9.32 | 999.9 | 272 |
| Aa,Ab | 8.83 | 0.8 | 51 |
| AC | 8.85 | 775.6 | 202 |
Data source: Washington Double Star (WDS) Catalog. Maintained by the U.S. Naval Observatory; thanks to the WDS team.
Finder Chart for ups Oph
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| Object name | ups Oph |
| Field of view | |
| Limiting magnitude | |
| ups Oph coordinates | 16.46339, -8.37169 |
| Center coordinates | 16.46339, -8.37169 |
16278-0822 Passage Through Night
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Current position of 16278-0822
| Time | 08:46 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Elevation | -41° |
| Azimuth | 65° |
Here you can see the current position of 16278-0822 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.
Annual motion of 16278-0822
16278-0822 will remain visible until September 29, when it moves too close to the Sun and temporarily disappears from the night sky.
| Date | Tue, 18 August 2026 |
| Twilight start | 19:28 |
| Twilight end | 02:44 |
| Twilight duration | 7h 17m |
| Rise | 12:12 |
| Set | 23:19 |
| Elevation at transit | 44° |
| Transit time | 17:45 |
| Equatorial coordinates | RA: 16h 27m 48s", Dec: -8° 22' 18s |
| Magnitude | 5 |
| Constellation | Ophiuchus |
The graph illustrates the annual visibility pattern of 16278-0822, 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 view detailed visibility information in a table with exact rise, transit, and set times for each date.
You can also view detailed visibility information in a table with exact rise, transit, and set times for each date.
Astrometric and Physical Parameters of 16278-0822
Coordinates and Visibility
| Right Ascension | 16.46339° |
| Declination | -8.37169° |
| Magnitude | 4.71 |
| Constellation | Ophiuchus |
| Elevation | -41° |
| Azimuth | 65.1° |