When is the best time to observe 34 Piscium?

34 Piscium is best observed from August through October, with peak visibility during September when it transits around midnight in the Northern Hemisphere.

Where is 34 Piscium located in the sky?

34 Piscium lies in the constellation Pisces at right ascension 00h 10m and declination +11° 09′.

What telescope do I need to split 34 Piscium?

Splitting 34 Piscium requires an aperture of roughly 80 mm or larger — the components are separated by about 7.6″ at magnitudes near 5.5. The companion is about 3.9 magnitudes fainter, so glare from the primary — not separation — sets the minimum aperture. Larger apertures and steady seeing help resolve the pair cleanly.

34 Piscium — Double Star in Pisces

Magnitude 5.5^m DoubleStar Pisces (Psc) Visible

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Observe

1Physical Properties

Magnitude 5.51

Spectral Type B9Vn

Star Color Blue-white (B-V -0.07)

Distance 192 ly

2Position & Identifiers

RA 00h 10m 02.3s

Dec +11° 08' 44.0"

Constellation Pisces (Psc)

HR 26

HIP 813

HD 560

SAO 91750

Flamsteed 34 Psc

Double Cat 122

SIMBAD

3How easy to split?

Primary 5.5 mag Companion 9.4 mag Separation 7.6″

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Telescope	Bortle 3	Bortle 4	Bortle 5
80 mm refractor 80mm refr.	Medium+	Medium+	Medium
150 mm Newton 150mm Newt.	Easy	Easy	Easy
Celestron C8 (203 mm SCT) C8 203mm	Easy	Easy	Easy

Easy Medium Hard Very hard Impossible

Bortle 3 = rural · 4 = outer suburbs · 5 = suburbs

4Visibility

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Best season Aug – Oct (peak: Sep)

5Multiple Star System

Separation 7.6″

Companion Mag 9.4

Position Angle 159°

Star Colors A: Blue-white B: Yellow

Discoverer STF 5

Notes

Companion 9.44V, +0.34(B-V), -0.14(U-B), G5Ve.

Separation over time

Measured 1825 → 2016 (191 y)

Separation drift 7.5" → 7.6" (+0.10")

Rate +0.0005" / y

PA drift 170° → 159° (-11°, -0.058°/y)

Essentially fixed on human timescales — the same view your grandchildren will see.

Measured from the WDS observational archive. No orbital solution has been derived — most likely the period is too long to fit an orbit to the available measurement arc.