19 Lyncis (Struve 1062)

Sketch of 19 Lyncis (Struve 1062/STF 1062)

Sketch of 19 Lyncis (Struve 1062)

Observation Notes:

The two main stars in this attractive multiple provided me with another unusual color contrast. The primary appeared yellow next to a rich blue secondary. Both stars are B class, so the appearance of the primary is illusory. I made measurements for the A, B and D components, but left the fainter C component out (2 o'clock position from center). It's position in the sketch however, matches up well with catalogued measurements. The D component (11:45 position from center) appeared to have a cyan hue.

Subject19 Lyncis (STF 1062)
ClassificationMultiple Star
Position (J2000)Lynx [RA: 7:22:52 / Dec: +55:16:52]*
Position Angle* A-B: 315° [2008.3 my measurement]; 315.6° [1999 Wycoff+]
A-D: 3.5° [2008.3 my measurement]; 4.1° [1999 Wycoff+]
B-C: 288.2° [1999 Wycoff+]
Separation* A-B: 15"; [2008.3 my measurement]; 14.7" [1999 Wycoff+]
A-D: 213"; [2008.3 my measurement]; 214.5" [1999 Wycoff+]
B-C: 74.2" [1999 Wycoff+]
Magnitudes*A: 5.45; B: 6.5; C: 10.9; D: 8.9
Spectral Types*A: B4V; B: B9V
Date/TimeAPR 12, 2008 - 10:40 PM MST (APR 13, 2008 - 05:40 UT)
Observing Loc.Flagstaff, Arizona, USA - Home
InstrumentOrion Skyview Pro 6LT (150 mm dia./1200 mm F/L)
Eyepieces/Mag.10 mm Sirius Plössl + 2X Barlow (240X)
12 mm Meade Astrometric EP + 2X Barlow (200X)
ConditionsClear, first quarter moon
Seeing6/10 Pickering
TransparencyNELM Mag 5.0
*ReferencesThe Washington Visual Double Star Catalog, Double stars measurements (Alzner 1998); Double stars in astrometric catalogs (Wycoff+, 2006); Catalogue of Stellar Spectral Classifications (Skiff, 2008); Starry Night Pro Plus

The Cerulean Arc

My weblog for
everything else non-astronomy

Pin at will!

(Thanks for maintaining
return links.)

About this Entry

This page contains a single entry by Jeremy Perez published on December 31, 2008 8:58 AM.

12 Lyncis (Struve 948) was the previous entry in this blog.

144P/Kushida - JAN 2 - 3, 2009 is the next entry in this blog.

Find recent content on the main index or look in the archives to find all content.


Monthly Archives

Powered by Movable Type 5.2.3