When is the best time to observe HIP 90981?

HIP 90981 is best observed from May through July, with peak visibility during June when it transits around midnight in the Northern Hemisphere.

Where is HIP 90981 located in the sky?

HIP 90981 lies in the constellation Pavone at right ascension 18h 33m and declination -58° 43′.

What telescope do I need to split HIP 90981?

Splitting HIP 90981 requires an aperture of roughly 450 mm or larger — the components are separated by about 1.2″ at magnitudes near 6.4. The companion is about 4.2 magnitudes fainter, so glare from the primary — not separation — sets the minimum aperture. Larger apertures and steady seeing help resolve the pair cleanly.

HIP 90981 — Stella doppia in Pavone

Magnitudine 6.4^m DoubleStar Pavone (Pav) Visibile

Mappa stellare + Lista + Piano Star Hop

Osservare

1Proprietà fisiche

Magnitudine 6.44

Tipo spettrale G5IV subgigante

Colore della stella Arancione (B-V 0.68)

2Posizione e identificatori

RA 18h 33m 29.5s

Dec -58° 42' 33.0"

Costellazione Pavone (Pav)

HR 6939

HIP 90981

HD 170525

SAO 245547

SIMBAD

3Facilità di separazione

Principale 6.4 mag Compagna 10.6 mag Separazione 1.2″

Accedi e configura la tua attrezzatura e località predefinita per vedere una riga personalizzata.

Telescopio	Bortle 3	Bortle 4	Bortle 5
Rifrattore 80 mm Rifr. 80mm	M. diff.	M. diff.	M. diff.
Newton 150 mm Newt. 150mm	M. diff.+	M. diff.+	M. diff.+
Celestron C8 (SCT 203 mm) C8 203mm	M. diff.+	M. diff.+	M. diff.+