When is the best time to observe HIP 29725?

HIP 29725 is best observed from November through January, with peak visibility during December when it transits around midnight in the Northern Hemisphere.

Where is HIP 29725 located in the sky?

HIP 29725 lies in the constellation Auriga at right ascension 06h 16m and declination +36° 09′.

What telescope do I need to split HIP 29725?

Splitting HIP 29725 requires an aperture of roughly 60 mm or larger — the components are separated by about 11.4″ at magnitudes near 6.9. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 29725 — Double Star in Auriga

Magnitude 6.9^m DoubleStar Auriga (Aur) Visible

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Observe

1Physical Properties

Magnitude 6.92

Spectral Type F4IV subgiant

Star Color Yellow (B-V 0.45)

2Position & Identifiers

RA 06h 15m 39.0s

Dec +36° 08' 55.0"

Constellation Auriga (Aur)

HR 2217

HIP 29725

HD 43017

SAO 58905

Double Cat 4849

SIMBAD

3How easy to split?

Primary 6.9 mag Companion 7.4 mag Separation 11.4″

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Telescope	Bortle 3	Bortle 4	Bortle 5
80 mm refractor 80mm refr.	Easy	Easy	Easy
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 Nov – Jan (peak: Dec)

5Multiple Star System Quadruple C: optical

Components 4 (quadruple)

Component IDs AB

Separation 11.4″

Companion Mag 7.4

Position Angle 216°

Star Colors A: Yellow B: Yellow

Discoverer STF 872

Notes

AB CPM. B is dF0; C 12.3v at 202" optical. D, 11.5v at 120" from A.

Separation over time

Measured 1798 → 2020 (222 y)

Separation drift 13.5" → 11.4" (-2.10")

Rate -0.0095" / y

PA drift 199° → 216° (+17°, +0.077°/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.