Asterism Atlas

Named star patterns beyond the official constellations.

Scorpius

Fish Hook of Scorpius

Scorpius hook

common observer pattern · high confidence

The northern claws and red Antares curve into the scorpion's long low hook. At 50°N only the upper hook is comfortable; the tail needs a flat southern horizon.

Central RA
16h 44m 12.3s
Central Dec
−32° 06′ 07″
Brightest member
V 0.96
Best months from 50°N
June–September evenings
Suggested instrument
naked-eye
Approx. span
28.6°
5Rho Sco (HR 5928) — V 3.88Eta Sco (HR 6380) — V 3.336Pi Sco (HR 5944) — V 2.8920Sig Sco (HR 6084) — V 2.8923Tau Sco (HR 6165) — V 2.8234Ups Sco (HR 6508) — V 2.697Del Sco (HR 5953) — V 2.3226Eps Sco (HR 6241) — V 2.29The Sco (HR 6553) — V 1.8735Lam Sco (HR 6527) — V 1.63Antares / 21Alp Sco (HR 6134) — V 0.96Antares35Lam ScoThe Scobrighter → largerV 1 reference1V 3 reference3V 5 reference5
Scorpius contextBright stars nearby; gold box marks the patternNE

Finder context

Use the nearby bright stars to locate the gold box, then move to the larger chart for the pattern itself.

Framing: Approximate member-star span: 28.6°; use at least 40.1° field for context.

Observing and imaging

Naked eye

Very low from 50°N: it culminates only about 8° above the southern horizon. Choose a flat, haze-free southern view and observe near transit.

Binoculars

Binoculars help against horizon haze, but atmospheric extinction this low dims and reddens the stars; pick a transparent night and a low southern horizon.

Small scope

Use binoculars for this low-horizon target.

Imaging

Frame a 40° field around Scorpius to include the pattern and its nearby stars.

Tonight from your latitude

Set your location and date to see a useful window, peak altitude, sky visibility, and Moon conditions. Use Month to compare the season ahead.

Naked-eye visibility by sky class

Bortle class rates night-sky brightness. The atlas counts a pattern as recognisable when at least 70% of its defining stars are visible.

Bortle 3: 11/11 stars — fully visibleBortle 5: 11/11 stars — fully visibleBortle 7: 11/11 stars — fully visible

Moon impact

For 50°N in the best month, green dates mark at least two hours with the pattern above 20° and the Moon below the horizon.

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Member stars

NameBayer / FlamsteedHRRA J2000Dec J2000V mag
Antares21Alp ScoHR 613416h 29m 24.4s−26° 25′ 55″0.96
35Lam Sco35Lam ScoHR 652717h 33m 36.5s−37° 06′ 14″1.63
The ScoThe ScoHR 655317h 37m 19.2s−42° 59′ 52″1.87
26Eps Sco26Eps ScoHR 624116h 50m 09.8s−34° 17′ 36″2.29
7Del Sco7Del ScoHR 595316h 00m 20.0s−22° 37′ 18″2.32
34Ups Sco34Ups ScoHR 650817h 30m 45.8s−37° 17′ 45″2.69
23Tau Sco23Tau ScoHR 616516h 35m 53.0s−28° 12′ 58″2.82
6Pi Sco6Pi ScoHR 594415h 58m 51.1s−26° 06′ 51″2.89
20Sig Sco20Sig ScoHR 608416h 21m 11.3s−25° 35′ 34″2.89
Eta ScoEta ScoHR 638017h 12m 09.2s−43° 14′ 21″3.33
5Rho Sco5Rho ScoHR 592815h 56m 53.1s−29° 12′ 51″3.88

Source and confidence

common observer pattern; high confidence. A commonly used constellation-part or seasonal guide pattern.

Citations