When is the best time to observe HIP 5679?

HIP 5679 is best observed from September through November, with peak visibility during October when it transits around midnight in the Northern Hemisphere.

Where is HIP 5679 located in the sky?

HIP 5679 lies in the constellation Pisces at right ascension 01h 13m and declination +30° 04′.

What telescope do I need to split HIP 5679?

Splitting HIP 5679 requires an aperture of roughly 60 mm or larger — the components are separated by about 10.7″ at magnitudes near 6.2. The companion is about 4.3 magnitudes fainter, so glare from the primary — not separation — sets the minimum aperture. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 5679 — Double Star in Pisces

Magnitude 6.2^m DoubleStar Pisces (Psc) Visible

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Observe

1Physical Properties

Magnitude 6.19

Spectral Type G9III+G1V giant

Star Color Orange (B-V 1.00)

2Position & Identifiers

RA 01h 12m 59.5s

Dec +30° 03' 51.0"

Constellation Pisces (Psc)

HR 356

HIP 5679

HD 7229

SAO 74561

Double Cat 990

SIMBAD

3How easy to split?

Primary 6.2 mag Companion 10.5 mag Separation 10.7″

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

Easy Medium Hard Very hard Impossible

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

4Visibility

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Best season Sep – Nov (peak: Oct)

5Multiple Star System Quadruple C: optical

Components 4 (quadruple)

Component IDs AB

Separation 10.7″

Companion Mag 10.5

Companion Sp G1V

Position Angle 258°

Star Colors A: Orange B: Yellow

Discoverer STT 26

Notes

AB CPM. Component B, 10.25V, +0.79(B-V), +0.29(U-B), G1V.

Separation over time

Measured 1828 → 2016 (188 y)

Separation drift 10.0" → 10.7" (+0.70")

Rate +0.0037" / y

PA drift 260° → 258° (-2°, -0.011°/y)

Slow change over generations — observable in lifetime comparisons.

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.