Monthly Sunspot Observation Report

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February 2007 Sunspot classification and coordinates →

13.82
Monthly mean R
17 / 28
Observation days (61%)
31
Maximum R
11
Days without observation

D: Day · T: Time (UT) · g: Number of groups · f: Number of spots · R: Relative number (10g+f) · Q: Seeing 1–5 · O: Observer · G: Assigned observer

DrawingDT (UT)gfRQOG
Drawing 01 07:30 2 11 31 3 Z. Funda BOSTANCI
Drawing 03 09:30 2 5 25 2 Tolga GÜVER
Drawing 06 10:45 2 2 22 4 Sinan ALİŞ
Drawing 07 06:25 2 2 22 3 İpek ÇAY H.
Drawing 08 08:00 1 2 12 3 Mevlana BAşAL
Drawing 09 09:15 1 1 11 2 Tolga GÜVER
Drawing 10 11:30 1 1 11 3 Sinan ALİŞ
Drawing 11 12:00 0 0 0 3 Mevlana BAşAL
Drawing 13 07:30 0 0 0 3 Tolga GÜVER
Drawing 14 08:40 0 0 0 3 Mevlana BAşAL
Drawing 16 09:00 0 0 0 3 İpek ÇAY H.
Drawing 20 07:05 1 3 13 3 Z. Funda BOSTANCI
Drawing 21 08:25 1 3 13 3 İpek ÇAY H.
Drawing 22 07:10 1 2 12 2 Z. Funda BOSTANCI
Drawing 25 10:45 1 1 11 2 Sinan ALİŞ
Drawing 26 09:00 2 3 23 3 Z. Funda BOSTANCI
Drawing 27 08:00 2 9 29 2 Sinan ALİŞ
Monthly Mean of Relative Number: 13.82 [17 observations; 61%]

Observers Observation days this month and mean observing times

ObserverDaysMean time (all)Mean time (own duty days)
Zahide Funda Bostancı Güver ZFB 4 07:41 --:--
Sinan Aliş SA 4 10:15 --:--
Tolga Güver TG 3 08:45 --:--
Ipek Hamami Cay ıH 3 07:57 --:--
Mevlana Başal MB 3 09:33 --:--
Month total17 – 11Observing window: 07:00 – 09:00 UT

Colour: black = within the window, green = up to 30 min late, purple = later.

The last twelve months Development of the daily and monthly mean relative number

Observation days (2007): 36 / 59 (61%) Days without observation: 23 Consecutive days: 3 (longest 6)

Solar Cycles 24 and 25 Solar cycle evolution