When is the best time to observe HIP 93017?

HIP 93017 is best observed from May through July, with peak visibility during June when it transits around midnight in the Northern Hemisphere.

Where is HIP 93017 located in the sky?

HIP 93017 lies in the constellation Lyra at right ascension 18h 57m and declination +32° 54′.

What telescope do I need to split HIP 93017?

Splitting HIP 93017 requires an aperture of roughly 350 mm or larger — the components are separated by about 0.9″ at magnitudes near 5.2. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 93017 — Double Star in Lyra

Magnitude 5.2^m DoubleStar Lyra (Lyr) Visible

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Observe

1Physical Properties

Magnitude 5.22

Spectral Type F9V

Star Color Yellow (B-V 0.59)

Distance 57 ly

2Position & Identifiers

RA 18h 57m 01.6s

Dec +32° 54' 05.0"

Constellation Lyra (Lyr)

HR 7162

HIP 93017

HD 176051

SAO 67612

Double Cat 11871

SIMBAD

3How easy to split?

Primary 5.2 mag Companion 8.0 mag Separation 0.9″

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

Easy Medium Hard Very hard Impossible

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

To reach "Medium" at Bortle 3, you'd need at least a 350 mm reflector.

4Visibility

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Best season May – Jul (peak: Jun)

5Multiple Star System Sextuple E,F: optical

Components 6 (sextuple)

Component IDs AB

Separation 0.9″

Companion Mag 8.0

Position Angle 224°

Star Colors A: Yellow B: Orange

Discoverer BU 648

Notes

AB 5.36 G0V, 7.46 K1V, 61.203y, a = 1.24". Combined mag., color. Components C, D, optical.

Separation over time

Period: 61.2 y Eccentricity: 0.249 Now: 0.85", PA 210° -0.45" in 5 years

Apparent separation over time, computed from ORB6 orbital elements. Steep curves indicate fast-changing pairs — catch them while they're splittable.

Eyepiece View

Telescope Eyepiece

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80x Dawes: 1.9″ TFOV: 0.6°

Seeing

Scale Realistic = true angular size

A: 5.2 · B: 8.0 · Sep: 0.9″ · PA: 224° · N up, E right

Unresolved · Rayleigh: 2.3″ · Dawes: 1.9″ · Eff: 2.3″

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6

Size Comparison

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7

Compare Stars

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8

Spectral Classification

9

Hertzsprung-Russell Diagram

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Read: The Hertzsprung-Russell Diagram — Reading Stars Like a Map

10

Stellar Lifecycle

11

Blackbody Spectrum

12

Stellar Absorption Spectrum

Simulated absorption spectrum based on spectral type. Hover over lines to identify elements.

13

Stellar Fusion

Discover

14Stellar Notes

Dynamical

0.066".

15

Light Travel Time Machine

16

Relativistic Travel

Nearby in the Sky

Other targets within a few degrees — pan your scope a little and keep exploring.

Visibility scores assume a 150 mm Newton at Bortle 4.

M57

NGC 6720

Easy

Planetary nebula — try an OIII filter

Planetary Nebula mag 9.0 0.7° Lyra

Sheliak

HIP 92420; Beta Lyrae; 10 Lyrae

Easy

Eclipsing binary, period 12.9d

Variable Star mag 3.45 1.5° Lyra

NGC 6743

Easy

Open cluster

Open Cluster mag 8.20 3.7° Lyra

Delta Lyr

HIP 92791; Delta2 Lyrae; 12 Lyrae

Medium

Cool red giant

Double Star mag 4.30 4.0° Lyra

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