נראות נוכחית
גובה
52.5°
אזימוט
289.1°
פרטי עצם
| Group | מאפיין | ערך |
|---|
Rise/Set Times
זמן זריחה
23:25
זמן מעבר
08:34
הגדרות
17:43
Observing Recommendations
Observing Tips:
- Visible to the naked eye under dark skies
- Look for spiral structure or dust lanes with larger telescopes
- Best viewed during new moon for contrast
- Great viewing conditions - fine detail should be visible
על נתוני שמיים עמוקים
Data Sources
Deep sky object data is compiled from authoritative astronomical catalogs including NGC (New General Catalogue), IC (Index Catalogue), Messier, and Caldwell. Primary source: OpenNGC.
Coordinate Systems
Right Ascension (RA): Celestial longitude measured in hours, minutes, and seconds (0h to 24h).
Declination (Dec): Celestial latitude measured in degrees, arcminutes, and arcseconds (-90 to +90 degrees).
סולם בהירות
The astronomical magnitude scale is logarithmic. Lower values = brighter objects. The formula relating magnitude difference to brightness ratio:
\[m_1 - m_2 = -2.5 \times \log_{10}\left(\frac{F_1}{F_2}\right)\]
where m is magnitude and F is flux.
Observing Recommendations
Recommendations are calculated based on:
- גובה: Objects above 30 degrees altitude are easier to observe
- עוצמת כוכב: Brighter objects (lower magnitude) are easier to see
- מופע הירח: Dark skies (new moon) improve visibility of faint objects
Rise and Set Times
Calculated using Skyfield astronomical library with observer's location and date. Times shown in local timezone. Objects are considered visible when altitude is above 0 degrees.
Best Viewing Time
Determined by finding when the object reaches maximum altitude (culmination) during nighttime hours. Calculated as:
\[t_{\text{best}} = \arg\max_{t \in \text{night}} h(t)\]
where h(t) is altitude as a function of time.