IOTA IndiaOccultation Science · India
← September 2026

Lunar occultations

Chennai India

September 2026 prediction listing

Observing siteOccultation prediction for Chennai India

E. Longitude 80 16 42.5, Latitude 13 5 16.2, Alt. 30m; Telescope dia 15cm; dMag 0.0

Source fileChennai India Lunar.txt
How to read this table

Times are UTC. P: D/R means disappearance/reappearance; lowercase means the target is near Occult's calculated visibility limit; Gr is a graze and M is a predicted miss. Mag v/r are visual/red magnitudes. % ill uses + for waxing and − for waning; Elon is lunar elongation. Sun/Moon Alt/Az locate the objects in the sky, while CA/PA/VA/AA locate the event around the lunar limb. A blank field means Occult did not supply a value.

IOTA parameter guide ↗Occult lunar tutorial ↗

UTC date & timePTargetMagnitudesMoonSky positionLimb angles
3 Sep 2026RReappearance616Sp F244 Tauri (IM)
1 catalog note
  • 616 = IM Tau, 5.33 to 5.46, V, Type DSCT, Period 0.14497 days, Phase 27%
Mag v5.4Mag r5.2 v% ill54-Elon95°Sun Alt—Moon Alt52°Moon Az63°CA80NPA270°VA13°AA280°
4 Sep 2026rReappearance · near visibility limit773Double wSp F8
1 catalog note
  • 773 is double: AB 7.0 9.3 315" 353.1, dT = +326sec
Mag v7.0Mag r6.7% ill44-Elon83°Sun Alt—Moon Alt10°Moon Az64°CA54SPA230°VA310°AA235°
8 Sep 2026RReappearance1395Sp G9Mag v6.3Mag r5.8% ill6-Elon27°Sun Alt—Moon Alt10°Moon Az75°CA51NPA330°VA49°AA313°
13 Sep 2026mMiss · near visibility limit1853Double cSp M3psi Virginis
3 catalog notes
  • 1853 is double: ** 5.0 8.3 0.040" 110.0
  • 1853 has been reported as non-instantaneous (OCc 387). Observations are highly desired
  • 1853 = psi Vir, 4.73 to 4.96, V, Type SR
Mag v4.8Mag r3.9 v% ill5+Elon26°Sun Alt52°Moon Alt26°Moon Az108°CA7NPA37°VA107°AA15°
14 Sep 2026DDisappearanceVenus
1 catalog note
  • Venus contacts: Bright limb 12 0 34; Cusp 12 2 17; Dark limb 12 2 43: diam = 37.0"; %illum = 29.2%; PA bright limb = 296.5
Mag v-4.7Mag r-4.7% ill12+Elon41°Sun Alt9°Moon Alt36°Moon Az237°CA57NPA80°VA24°AA64°
14 Sep 2026DDisappearance1993Double cSp K3Mag v6.6Mag r5.9% ill12+Elon41°Sun Alt-9°Moon Alt20°Moon Az246°CA43NPA70°VA1°AA50°
14 Sep 2026RReappearanceVenus
1 catalog note
  • Venus contacts: Bright limb 13 15 40; Cusp 13 16 56; Dark limb 13 17 31: diam = 37.0"; %illum = 29.2%; PA bright limb = 296.5
Mag v-4.7Mag r-4.7% ill12+Elon41°Sun Alt-9°Moon Alt20°Moon Az246°CA-66NPA318°VA252°AA301°
19 Sep 2026DDisappearance2644Double cSp F8
2 catalog notes
  • 2644 is double: ** 7.1 7.1 0.10" 90.0, dT = +0.38sec
  • 2644 has been reported as non-instantaneous (OCc 168). Observations are highly desired
Mag v6.4Mag r6.1% ill56+Elon97°Sun Alt-5°Moon Alt49°Moon Az177°CA90NPA87°VA90°AA88°
22 Sep 2026DDisappearance3069Sp A*20 Capricorni (AO)
1 catalog note
  • 3069 = AO Cap, 6.25 to 6.30, V, Type ACV, Period 2.2411 days, Phase 62%
Mag v6.3Mag r6.3 v% ill84+Elon132°Sun Alt—Moon Alt39°Moon Az232°CA56SPA107°VA52°AA121°
23 Sep 2026DDisappearance3181Double SSp A745 Capricorni
2 catalog notes
  • 3181 is triple: ** 6.7 6.7 0.050" : AB 5.4 9.5 4.3" 229.0, dT = -13sec
  • 3181 has been reported as non-instantaneous (OCc1610). Observations are highly desired
Mag v6.0Mag r5.8% ill90+Elon143°Sun Alt—Moon Alt52°Moon Az135°CA82NPA61°VA106°AA79°
24 Sep 2026mMiss · near visibility limit3322Double cSp G1
3 catalog notes
  • 3322 is double: AB 6.64 8.11 0.08" 295.9
  • 3322 is a close double. Observations are highly desired
  • Distance of 3322 to Terminator = 8.6"; to 3km sunlit peak = 0.8"
Mag v6.4Mag r—% ill96+Elon157°Sun Alt—Moon Alt31°Moon Az253°CA18SPA142°VA72°AA162°
24 Sep 2026GrGrazing event3322Double cSp G1RA 78+0.48(E. · Dec ong-80.28
More parameters
Libration L/B
ist. / 69km
Site correction A/B
in a / z. 3
RV / Cct
4deg / [Lat
Duration
13. s
Moon distance
] Mm
1 catalog note
  • Distance of 3322 to Terminator = 11.2"; to 3km sunlit peak = 2.4"
Mag v6.4Mag r—% ill96+Elon157°Sun Alt—Moon Alt29°Moon Az—** GRAZE: CA 18.3S; Dist. 69km in az. 334deg. [Lat = 13.78+0.48(E.Long-80.28)]
30 Sep 2026RReappearance539Double SSp B6Taygeta = 19 Tauri
3 catalog notes
  • 539 is multiple: Aa,Ab 4.6 6.1 : AB 0.063" 84.3, dT = +0.04sec : AC 4.3 14.0 53" 53.4, dT = +123sec : AB 4.3 11.0 72" 328.8, dT = +202sec
  • 539 is a close double. Observations are highly desired
  • 539 = NSV 1264, 4.30, range 0.00, 1Kp, Type SPB, Period 1.5664 days
Mag v4.3Mag r4.4 s% ill80-Elon127°Sun Alt—Moon Alt8°Moon Az66°CA22SPA186°VA265°AA198°
30 Sep 2026rReappearance · near visibility limit542Double pSp B8Asterope = 21 Tauri
1 catalog note
  • 542 is triple: AB 5.8 6.4 150" 130.1, dT = -195sec : AD 5.8 12.7 170" 74.1, dT = +235sec
Mag v5.8Mag r5.8% ill80-Elon127°Sun Alt—Moon Alt12°Moon Az67°CA29SPA193°VA274°AA206°
30 Sep 2026RReappearance538Double pSp B818 Tauri
2 catalog notes
  • 538 is quadruple: Aa,Ab 6.4 6.4 0.10" : AB 5.6 14.0 72" 128.9, dT = +106sec : AC 5.6 14.8 151" 175.1, dT = +28sec
  • 538 is a close double. Observations are highly desired
Mag v5.7Mag r5.7% ill80-Elon127°Sun Alt—Moon Alt13°Moon Az67°CA73NPA271°VA352°AA283°
30 Sep 2026RReappearance555Sp K5
1 catalog note
  • 555 = NSV 1316, 6.44, range 0.02, 0V, Type VAR, Period 1.48987 days
Mag v6.4Mag r5.6 s% ill80-Elon126°Sun Alt—Moon Alt30°Moon Az68°CA76SPA240°VA329°AA252°
30 Sep 2026MMiss569Double cSp A2
2 catalog notes
  • 569 is double: AB 5.73 6.52 0.66" 204.1
  • 569 is a close double. Observations are highly desired
Mag v5.3Mag r—% ill79-Elon126°Sun Alt—Moon Alt41°Moon Az67°CA11NPA334°VA69°AA346°
30 Sep 2026RReappearance571Double pSp A2
1 catalog note
  • 571 is double: ** 7.1 9.1
Mag v6.8Mag r6.7% ill79-Elon126°Sun Alt—Moon Alt48°Moon Az67°CA35SPA199°VA298°AA211°
30 Sep 2026RReappearance579Double kSp A2
1 catalog note
  • 579 = NSV 1391, 6.33,
Mag v6.4Mag r6.3 S% ill79-Elon125°Sun Alt—Moon Alt70°Moon Az48°CA87NPA258°VA24°AA270°
View original fixed-width prediction data
Original prediction dataChennai India Lunar.txt
Occultation prediction for Chennai India
E. Longitude   80 16 42.5,  Latitude  13  5 16.2,  Alt.   30m;  Telescope dia 15cm;  dMag 0.0

       day  Time     P   Star  Sp  Mag  Mag    % Elon Sun  Moon   CA   PA  VA  AA
 y   m  d  h  m   s       No  D     v    r V  ill     Alt Alt Az   o    o   o   o
26 Sep  3 21 28 31.0 R     616 F2  5.4  5.2v  54-  95     52  63  80N 270  13 280
   R616 = 44 Tauri (IM)
       616 = IM Tau, 5.33 to 5.46, V, Type DSCT, Period 0.14497 days, Phase  27%
26 Sep  4 19 15 36.5 r     773wF8  7.0  6.7   44-  83     10  64  54S 230 310 235
       773 is double: AB 7.0 9.3 315" 353.1, dT = +326sec
26 Sep  8 23 21 50.5 R    1395 G9  6.3  5.8    6-  27     10  75  51N 330  49 313
26 Sep 13  4  5 59   m    1853cM3  4.8  3.9v   5+  26  52 26 108   7N  37 107  15
   R1853 = psi Virginis
      1853 is double: ** 5.0 8.3 0.040" 110.0
      1853 has been reported as non-instantaneous (OCc 387). Observations are highly desired
      1853 = psi Vir, 4.73 to 4.96, V, Type SR
26 Sep 14 12  1 38.9 D Venus      -4.7 -4.7   12+  41   9 36 237  57N  80  24  64
   Venus contacts: Bright limb 12  0 34; Cusp 12  2 17; Dark limb 12  2 43: diam = 37.0"; %illum = 29.2%; PA bright limb = 296.5
26 Sep 14 13 14 30.6 D    1993cK3  6.6  5.9   12+  41  -9 20 246  43N  70   1  50
26 Sep 14 13 16 35.7 R Venus      -4.7 -4.7   12+  41  -9 20 246 -66N 318 252 301
   Venus contacts: Bright limb 13 15 40; Cusp 13 16 56; Dark limb 13 17 31: diam = 37.0"; %illum = 29.2%; PA bright limb = 296.5
26 Sep 19 12 55 32.6 D    2644cF8  6.4  6.1   56+  97  -5 49 177  90N  87  90  88
      2644 is double: ** 7.1 7.1 0.10"  90.0, dT = +0.38sec
      2644 has been reported as non-instantaneous (OCc 168). Observations are highly desired
26 Sep 22 18 17 20.5 D    3069 A*  6.3  6.3v  84+ 132     39 232  56S 107  52 121
   R3069 = 20 Capricorni (AO)
      3069 = AO Cap, 6.25 to 6.30, V, Type ACV, Period 2.2411 days, Phase  62%
26 Sep 23 14 27 55.9 D    3181SA7  6.0  5.8   90+ 143     52 135  82N  61 106  79
   R3181 = 45 Capricorni
      3181 is triple: ** 6.7 6.7 0.050"       : AB 5.4 9.5 4.3" 229.0, dT = -13sec
      3181 has been reported as non-instantaneous (OCc1610). Observations are highly desired
26 Sep 24 20 47 25   m    3322cG1  6.4        96+ 157     31 253  18S 142  72 162
      3322 is double: AB 6.64 8.11 0.08" 295.9
      3322 is a close double. Observations are highly desired
   Distance of 3322 to Terminator = 8.6"; to 3km sunlit peak = 0.8"
26 Sep 24 20 48  8   Gr   3322cG1  6.4        96+ 157     29 ** GRAZE: CA 18.3S; Dist. 69km in az. 334deg. [Lat = 13.78+0.48(E.Long-80.28)]
   Distance of 3322 to Terminator = 11.2"; to 3km sunlit peak = 2.4"
26 Sep 30 15 57 55.5 R     539SB6  4.3  4.4s  80- 127      8  66  22S 186 265 198
   R539 = Taygeta = 19 Tauri
       539 is multiple: Aa,Ab 4.6 6.1            : AB          0.063"  84.3, dT = +0.04sec : AC 4.3 14.0 53"  53.4, dT = +123sec : AB 4.3 11.0 72" 328.8, dT = +202sec
       539 is a close double. Observations are highly desired
       539 = NSV 1264, 4.30, range 0.00, 1Kp, Type SPB, Period 1.5664 days
26 Sep 30 16 18 45.0 r     542pB8  5.8  5.8   80- 127     12  67  29S 193 274 206
   R542 = Asterope = 21 Tauri
       542 is triple: AB 5.8 6.4 150" 130.1, dT = -195sec : AD 5.8 12.7 170"  74.1, dT = +235sec
26 Sep 30 16 23 15.0 R     538pB8  5.7  5.7   80- 127     13  67  73N 271 352 283
   R538 = 18 Tauri
       538 is quadruple: Aa,Ab 6.4 6.4 0.10"       : AB 5.6 14.0 72" 128.9, dT = +106sec : AC 5.6 14.8 151" 175.1, dT = +28sec
       538 is a close double. Observations are highly desired
26 Sep 30 17 38 25.0 R     555 K5  6.4  5.6s  80- 126     30  68  76S 240 329 252
       555 = NSV 1316, 6.44, range 0.02, 0V, Type VAR, Period 1.48987 days
26 Sep 30 18 31 40   M     569cA2  5.3        79- 126     41  67  11N 334  69 346
       569 is double: AB 5.73 6.52 0.66" 204.1
       569 is a close double. Observations are highly desired
26 Sep 30 19  1 58.6 R     571pA2  6.8  6.7   79- 126     48  67  35S 199 298 211
       571 is double: ** 7.1 9.1           
26 Sep 30 20 50 17.9 R     579kA2  6.4  6.3S  79- 125     70  48  87N 258  24 270
       579 = NSV 1391, 6.33,