17209+2430 Position and Visibility Tonight
Where is 17209+2430 right now?
17209+2430 is located in the constellation Hercules. Although 17209+2430 is currently 57° above the horizon, it is not visible because it is daytime.
Twilight begins at 18:44 local time. At that moment, 17209+2430 will be 75° above the horizon toward the south-west.
Twilight begins at 18:44 local time. At that moment, 17209+2430 will be 75° above the horizon toward the south-west.
17209+2430 visibility on 2026-08-27
17209+2430 Visible from sunset until early morning
17209+2430 rise and set timetable
| Time | Elevation | |
Moonrise, 98.6% illuminated  | 17:09 | 72° |
| Sunset | 17:43 | 76° |
| 17209+2430 transit | 18:07 | 77° |
| Civil sunset | 18:11 | 77° |
| Twilight start | 18:44 | 75° |
| Astronomical observing session begins | 19:17 | 70° |
| 17209+2430 set | 01:27 | |
| Astronomical observing session ends | 03:01 | -15° |
| Moonset | 04:01 | -22° |
| 17209+2430 rise | 10:43 |
Track 17209+2430 Position Throughout the Night
← 27 August 2026 →
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Star system description: 17209+2430
System 17209+2430 — 6-star system, is located in the constellation Hercules, at coordinates RA: 17h 20m 54s", Dec: 24° 29' 57s.
The primary and secondary magnitudes are 5.12 and 9.33. Their separation is 3.7 arcminutes, at position angle 56°. The magnitude difference is 4.21 magnitudes; the primary is approximately 48.3 times brighter.
The following technical data come from the Washington Double Star Catalog.
The primary and secondary magnitudes are 5.12 and 9.33. Their separation is 3.7 arcminutes, at position angle 56°. The magnitude difference is 4.21 magnitudes; the primary is approximately 48.3 times brighter.
The following technical data come from the Washington Double Star Catalog.
Technical details: 17209+2430
| Property | Value |
|---|---|
| System identifier | 17209+2430 |
| System type | 6-star system |
| Primary star | 70 Her |
| Right ascension (RA) | 17.34839 (17h 20m 54s") |
| Declination (Dec) | 24.49944 (24° 29' 57s) |
| Primary magnitude | 5.12 |
| Secondary magnitude | 9.33 |
| Spectral type (primary/secondary) | A2V |
| Separation (arcseconds) | 220.7 |
| Position angle | 56° |
| Discovery year | 1879 |
| Last observed | 2023 |
| Primary proper motion (RA, Dec) | -019-001 |
| Secondary proper motion (RA, Dec) | +010+001 |
| Number of observations | 23 |
Components of 17209+2430
| Component | Magnitude | Separation (arcseconds) | Position angle |
| AB | 9.33 | 220.7 | 56 |
| AC | 12.58 | 239.7 | 20 |
| AD | 10.76 | 224.1 | 223 |
| AE | 11.32 | 550.8 | 29 |
| BC | 12.58 | 146.1 | 315 |
Data source: Washington Double Star (WDS) Catalog. Maintained by the U.S. Naval Observatory; thanks to the WDS team.
Finder Chart for 70 Her
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| Object name | 70 Her |
| Field of view | |
| Limiting magnitude | |
| 70 Her coordinates | 17.34839, 24.49944 |
| Center coordinates | 17.34839, 24.49944 |
17209+2430 Passage Through Night
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Current position of 17209+2430
| Time | 15:46 |
| Latitude | 37.3541 |
| Longitude | -121.955 |
| Elevation | 57° |
| Azimuth | 103° |
Here you can see the current position of 17209+2430 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 17209+2430
17209+2430 will remain visible until November 25, when it moves too close to the Sun and temporarily disappears from the night sky.
| Date | Fri, 28 August 2026 |
| Twilight start | 19:15 |
| Twilight end | 03:00 |
| Twilight duration | 8h 45m |
| Rise | 10:43 |
| Set | 01:23 |
| Elevation at transit | 77° |
| Transit time | 18:03 |
| Equatorial coordinates | RA: 17h 20m 54s", Dec: 24° 29' 57s |
| Magnitude | 5 |
| Constellation | Hercules |
The graph illustrates the annual visibility pattern of 17209+2430, 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 17209+2430
Coordinates and Visibility
| Right Ascension | 17.34839° |
| Declination | 24.49944° |
| Magnitude | 5.12 |
| Constellation | Hercules |
| Elevation | 57.4° |
| Azimuth | 103.1° |