When is the best time to observe HIP 97307?

HIP 97307 is best observed from June through August, with peak visibility during July when it transits around midnight in the Northern Hemisphere.

Where is HIP 97307 located in the sky?

HIP 97307 lies in the constellation Cygnus at right ascension 19h 47m and declination +32° 53′.

What telescope do I need to split HIP 97307?

Splitting HIP 97307 requires an aperture of roughly 60 mm or larger — the components are separated by about 28.9″ at magnitudes near 6.2. The companion is about 3.4 magnitudes fainter, so glare from the primary — not separation — sets the minimum aperture. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 97307 — Double Star in Cygnus

Magnitude 6.2^m DoubleStar Cygnus (Cyg) Visible

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Observe

1Physical Properties

Magnitude 6.18

Spectral Type K3III giant

Star Color Orange (B-V 1.13)

Distance 204 ly

2Position & Identifiers

RA 19h 46m 35.0s

Dec +32° 53' 19.0"

Constellation Cygnus (Cyg)

HR 7535

HIP 97307

HD 187038

SAO 68835

Double Cat 12920

SIMBAD

3How easy to split?

Primary 6.2 mag Companion 9.6 mag Separation 28.9″

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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 Jun – Aug (peak: Jul)

5Multiple Star System Quadruple

Components 4 (quadruple)

Component IDs AD

Separation 28.9″

Companion Mag 9.6

Position Angle 191°

Star Colors A: Orange

Discoverer S 726

Notes

B, 13v at 3" binary with A. C, 14v at 10" binary with A. D, optical.

Separation over time

Measured 1825 → 2024 (199 y)

Separation drift 33.4" → 28.9" (-4.50")

Rate -0.0226" / y

PA drift 206° → 191° (-15°, -0.075°/y)

Apparent motion is significant on a human timescale — worth revisiting in a decade.

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.