When is the best time to observe HIP 1302?

HIP 1302 is best observed from August through October, with peak visibility during September when it transits around midnight in the Northern Hemisphere.

Where is HIP 1302 located in the sky?

HIP 1302 lies in the constellation Andromeda at right ascension 00h 16m and declination +43° 36′.

What telescope do I need to split HIP 1302?

Splitting HIP 1302 requires an aperture of roughly 80 mm or larger — the components are separated by about 8.6″ at magnitudes near 6.2. The companion is about 3.7 magnitudes fainter, so glare from the primary — not separation — sets the minimum aperture. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 1302 — Double Star in Andromeda

Magnitude 6.2^m DoubleStar Andromeda (And) Visible

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Observe

1Physical Properties

Magnitude 6.15

Spectral Type A2VpSi

Star Color White (B-V 0.05)

2Position & Identifiers

RA 00h 16m 21.6s

Dec +43° 35' 41.0"

Constellation Andromeda (And)

HR 56

HIP 1302

HD 1185

SAO 36221

Double Cat 215

SIMBAD

3How easy to split?

Primary 6.2 mag Companion 9.8 mag Separation 8.6″

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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	Medium+
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 C,D: optical

Separation 8.6″

Companion Mag 9.8

Position Angle 76°

Star Colors A: White B: Yellow

Discoverer HJ 1947

Notes

CPM.

Separation over time

Measured 1831 → 2024 (193 y)

Separation drift 10.0" → 8.6" (-1.40")

Rate -0.0073" / y

PA drift 81° → 76° (-5°, -0.026°/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.