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Data is presented for 42 grazes of bright stars during 2018 with paths crossing some part of New Zealand. Most should be visible with a 10cm telescope, although a larger aperture would make observation easier.
For each graze predictions are given for locations less than 110 km of the graze line. The columns show:
Date and Time (UT).
P the type of event, always Gr.
Star number followed by a double code (D), if any, and the spectral type.
Magnitude v(isual) and r(ed).
The % of moon illuminated, + indicates before full, - after full.
The Sun's altitude if less than 12° below the horizon.
The moon's altitude in degrees.
The cusp angle, distance from the lit N or S cusp in degrees.
The Dist(ance) of the graze line from the given locality and the direction (azimuth) of the nearest point on the graze line.
The locality for which the data applies.
The localities for which data is given are:
N Island: Whangarei, Auckland, Hamilton, Whakatane, Gisborne, Taupo, New Plymouth, Napier, Palmerston North, Wellington.
S Island: Nelson, Kaikoura, Greymouth, Christchurch, Mt John (Tekapo), Timaru, Wanaka, Queenstown, Dunedin, Invercargill.
Graze events are grouped in three's, each group being followed by a set of 3 maps showing the line of the graze across part of New Zealand.
All data and maps were prepared using Dave Herald's Occult 4 program. Intending observers will need to prepare detailed predictions using Occult to obtain times and a precise location of the event and a profile of the moon's limb.
SUMMARY OF NEW ZEALAND GRAZING OCCULTATION 2018. TELESCOPE DIAMETER 10cm
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Date Time P Star Sp Mag Mag % Elon Sun Moon Cusp Dist. Azimuth Locality
y m d h m s No D v r ill Alt Alt Angle °
18 Jan 7 15 15 46 Gr 119272 F5 7.6 7.3 63- 105 30 3.1S; 14km in az. 218deg. Invercargill
18 Mar 12 14 30 20 Gr 2902cK0 5.9 5.4 22- 55 9 10.2S; 53km in az. 205deg. Palmerston North
18 Mar 12 14 30 6 Gr 2902cK0 5.9 5.4 22- 55 8 10.2S; 72km in az. 25deg. Wellington
18 Mar 26 7 7 16 Gr 1193cA0 5.4 5.4 68+ 112 -10 31 3.9S; 27km in az. 185deg. Hamilton
18 Mar 26 7 11 14 Gr 1193cA0 5.4 5.4 68+ 112 -12 31 3.4S; 25km in az. 188deg. Whakatane
18 Mar 26 7 9 10 Gr 1193cA0 5.4 5.4 68+ 112 -11 31 3.6S; 65km in az. 7deg. Taupo
18 Mar 26 7 13 35 Gr 1193cA0 5.4 5.4 68+ 112 31 3.1S; 41km in az. 10deg. Gisborne
18 Apr 7 12 2 29 Gr 2710 A8 6.7 6.5 57- 98 13 12.3S; 46km in az. 207deg. Auckland 18 Apr 7 12 2 44 Gr 2710 A8 6.7 6.5 57- 98 13 12.3S; 22km in az. 28deg. Hamilton 18 Apr 7 12 3 43 Gr 2710 A8 6.7 6.5 57- 98 15 12.3S; 32km in az. 208deg. Whakatane 18 Apr 7 12 4 20 Gr 2710 A8 6.7 6.5 57- 98 16 12.3S; 3km in az. 208deg. Gisborne 18 Apr 7 12 3 11 Gr 2710 A8 6.7 6.5 57- 98 14 12.3S; 76km in az. 28deg. Taupo 18 Apr 7 16 43 57 Gr 2729cB9 6.9 6.9E 55- 96 64 8.5S; 48km in az. 191deg. New Plymouth 18 Apr 7 16 49 40 Gr 2729cB9 6.9 6.9E 55- 96 66 7.7S; 45km in az. 188deg. Napier 18 Apr 7 16 47 5 Gr 2729cB9 6.9 6.9E 55- 96 65 8.1S; 68km in az. 10deg. Palmerston North 18 Apr 7 18 1 24 Gr 2734wK2 5.2 4.5 55- 96 -8 73 4.6S; 11km in az. 179deg. Auckland 18 Apr 7 18 2 26 Gr 2734wK2 5.2 4.5 55- 96 -8 73 4.5S; 87km in az. 359deg. Hamilton
18 Apr 13 17 33 48 Gr 146913 K2 8.9 8.3 6- 28 10 9.8S; 104km in az. 181deg. Timaru 18 Apr 13 17 33 25 Gr 146913 K2 8.9 8.3 6- 28 8 10.1S; 65km in az. 182deg. Wanaka 18 Apr 13 17 33 21 Gr 146913 K2 8.9 8.3 6- 28 8 10.1S; 28km in az. 182deg. Queenstown 18 Apr 13 17 33 39 Gr 146913 K2 8.9 8.3 6- 28 9 9.9S; 61km in az. 2deg. Dunedin 18 Apr 23 9 35 29 Gr 1312pF2 6.8 6.6 55+ 96 20 3.3N; 74km in az. 214deg. Palmerston North 18 Apr 23 9 34 40 Gr 1312pF2 6.8 6.6 55+ 96 21 3.4N; 53km in az. 34deg. Wellington 18 May 2 13 31 17 Gr 2399 G8 4.9 4.3 93- 150 63 18.1S; 69km in az. 203deg. Nelson 18 May 2 13 32 9 Gr 2399 G8 4.9 4.3 93- 150 63 18.1S; 31km in az. 24deg. Kaikoura
Date Time P Star Sp Mag Mag % Elon Sun Moon Cusp Dist. Azimuth Locality y m d h m s No D v r ill Alt Alt Angle ° 18 May 8 12 48 4 Gr 3181SA7 6.0 5.8 45- 84 6 10.4S; 8km in az. 198deg. Nelson 18 May 8 12 48 8 Gr 3181SA7 6.0 5.8 45- 84 6 10.3S; 100km in az. 18deg. Kaikoura 18 May 24 10 8 24 Gr 1755 A0 6.9 6.9 73+ 118 37 3.3N; 84km in az. 213deg. Christchurch 18 May 24 10 4 47 Gr 1755 A0 6.9 6.9 73+ 118 39 3.7N; 55km in az. 34deg. Mt. John 18 May 24 10 6 6 Gr 1755 A0 6.9 6.9 73+ 118 39 3.6N; 59km in az. 34deg. Timaru 18 Jun 1 12 3 41 Gr 2757 B9 5.0 5.0 92- 147 53 14.6S; 48km in az. 198deg. Hamilton 18 Jun 1 12 6 49 Gr 2757 B9 5.0 5.0 92- 147 54 14.2S; 77km in az. 197deg. Whakatane 18 Jun 1 12 5 11 Gr 2757 B9 5.0 5.0 92- 147 53 14.4S; 25km in az. 18deg. Taupo 18 Jun 1 12 8 40 Gr 2757 B9 5.0 5.0 92- 147 55 14.0S; 27km in az. 196deg. Gisborne 18 Jun 1 12 6 39 Gr 2757 B9 5.0 5.0 92- 147 54 14.2S; 88km in az. 17deg. Napier
18 Jun 2 17 18 26 Gr 2908cF0 6.9 6.7 85- 135 59 1.7N; 21km in az. 156deg. Whakatane 18 Jun 2 17 16 13 Gr 2908cF0 6.9 6.7 85- 135 60 1.5N; 22km in az. 336deg. Taupo 18 Jun 2 17 11 10 Gr 2908cF0 6.9 6.7 85- 135 61 1.1N; 7km in az. 157deg. New Plymouth 18 Jun 2 17 20 55 Gr 2908cF0 6.9 6.7 85- 135 58 1.9N; 88km in az. 335deg. Gisborne 18 Jun 5 12 44 26 Gr 3268 K1 5.3 4.8 61- 103 17 7.6S; 31km in az. 191deg. Mt. John 18 Jun 5 12 44 46 Gr 3268 K1 5.3 4.8 61- 103 17 7.5S; 3km in az. 11deg. Timaru 18 Jun 5 12 43 53 Gr 3268 K1 5.3 4.8 61- 103 16 7.7S; 67km in az. 11deg. Wanaka 18 Jun 5 12 43 42 Gr 3268 K1 5.3 4.8 61- 103 15 7.8S; 109km in az. 12deg. Queenstown 18 Jun 8 16 41 10 Gr 109441kG5 7.7 7.2 30- 67 32 2.5N; 59km in az. 160deg. Whakatane 18 Jun 8 16 40 6 Gr 109441kG5 7.7 7.2 30- 67 31 2.3N; 8km in az. 161deg. Taupo 18 Jun 8 16 42 26 Gr 109441kG5 7.7 7.2 30- 67 33 2.8N; 45km in az. 339deg. Gisborne 18 Jun 8 16 41 4 Gr 109441kG5 7.7 7.2 30- 67 31 2.5N; 98km in az. 340deg. Napier 18 Jun 8 16 37 49 Gr 109441kG5 7.7 7.2 30- 67 29 1.9N; 23km in az. 162deg. New Plymouth
18 Jun 10 17 9 31 Gr 368DK2 6.2 13- 42 5 0.5S; 26km in az. 163deg. Invercargill
18 Jun 23 6 23 5 Gr 139898DG0 7.6 7.2 78+ 124 46 5.4N; 67km in az. 220deg. Palmerston North
18 Jun 23 6 21 4 Gr 139898DG0 7.6 7.2 78+ 124 45 5.4N; 59km in az. 40deg. Wellington
18 Jun 23 6 23 14 Gr 2059SG0 7.7 78+ 124 46 5.3N; 80km in az. 220deg. Palmerston North
18 Jun 23 6 21 13 Gr 2059SG0 7.7 78+ 124 45 5.3N; 46km in az. 40deg. Wellington
R2059 and R139898 are a double pair, STF1833 A & B respectively. Separation 6" at PA 98°
Date Time P Star Sp Mag Mag % Elon Sun Moon Cusp Dist. Azimuth Locality y m d h m s No D v r ill Alt Alt Angle ° 18 Jun 30 9 9 45 Gr 2963WK2 5.3 4.6 96- 156 23 13.1S; 74km in az. 202deg. Nelson 18 Jun 30 9 10 4 Gr 2963WK2 5.3 4.6 96- 156 23 13.1S; 28km in az. 22deg. Kaikoura 18 Jul 5 12 45 23 Gr 49 K1 6.1 5.4 57- 98 11 1.1S; 48km in az. 177deg. New Plymouth 18 Jul 5 12 46 8 Gr 49 K1 6.1 5.4 57- 98 13 0.7S; 13km in az. 356deg. Napier 18 Jul 6 16 43 33 Gr 192 A3 5.1 5.1 46- 85 31 5.8N; 109km in az. 152deg. Queenstown 18 Jul 6 16 45 54 Gr 192 A3 5.1 5.1 46- 85 33 6.2N; 43km in az. 330deg. Dunedin 18 Jul 6 16 43 14 Gr 192 A3 5.1 5.1 46- 85 31 5.8N; 16km in az. 331deg. Invercargill
18 Jul 7 14 57 45 Gr 303cK0 6.4 5.9 36- 73 13 4.0N; 64km in az. 162deg. Hamilton 18 Jul 7 14 58 40 Gr 303cK0 6.4 5.9 36- 73 15 4.4N; 0km in az. 342deg. Whakatane 18 Jul 7 14 58 11 Gr 303cK0 6.4 5.9 36- 73 14 4.2N; 53km in az. 342deg. Taupo 18 Jul 7 14 59 15 Gr 303cK0 6.4 5.9 36- 73 16 4.5N; 104km in az. 341deg. Gisborne 18 Jul 21 7 11 54 Gr 158959 F2 7.3 7.1 65+ 107 64 9.3N; 15km in az. 31deg. Auckland 18 Jul 21 7 13 13 Gr 158959 F2 7.3 7.1 65+ 107 64 9.2N; 78km in az. 31deg. Hamilton 18 Jul 21 7 20 43 Gr 158959 F2 7.3 7.1 65+ 107 63 8.6N; 44km in az. 29deg. Gisborne 18 Jul 31 18 6 13 Gr 3463 K0 6.4 5.7 87- 137 41 9.0N; 55km in az. 143deg. Whangarei 18 Jul 31 18 7 21 Gr 3463 K0 6.4 5.7 87- 137 41 8.9N; 76km in az. 323deg. Auckland
18 Aug 4 14 29 59 Gr 393cK0 6.7 6.1 51- 91 21 9.0N; 56km in az. 335deg. Whangarei 18 Aug 8 17 38 53 Gr 78560 G5 8.1 7.4 10- 37 7 10.3N; 28km in az. 331deg. Auckland 18 Aug 17 7 0 33 Gr 2100 G5 6.5 6.0 39+ 77 53 8.1N; 44km in az. 198deg. Taupo 18 Aug 17 6 56 17 Gr 2100 G5 6.5 6.0 39+ 77 55 8.7N; 56km in az. 20deg. New Plymouth 18 Aug 17 7 2 12 Gr 2100 G5 6.5 6.0 39+ 77 52 7.9N; 18km in az. 18deg. Napier
Date Time P Star Sp Mag Mag % Elon Sun Moon Cusp Dist. Azimuth Locality y m d h m s No D v r ill Alt Alt Angle ° 18 Aug 17 7 36 47 Gr 2102 F2 6.9 6.6 39+ 78 47 7.0N; 100km in az. 197deg. Queenstown 18 Aug 17 7 39 46 Gr 2102 F2 6.9 6.6 39+ 78 46 6.6N; 51km in az. 196deg. Dunedin 18 Aug 17 7 36 20 Gr 2102 F2 6.9 6.6 39+ 78 47 7.1N; 53km in az. 18deg. Invercargill 18 Aug 20 10 56 47 Gr 2497PG1 6.5 6.2 70+ 113 44 2.6S; 47km in az. 166deg. Taupo 18 Aug 20 10 59 26 Gr 2497PG1 6.5 6.2 70+ 113 42 2.9S; 8km in az. 165deg. Gisborne 18 Aug 20 10 53 53 Gr 2497PG1 6.5 6.2 70+ 113 46 2.2S; 44km in az. 167deg. New Plymouth 18 Aug 20 10 57 55 Gr 2497PG1 6.5 6.2 70+ 113 43 2.7S; 56km in az. 346deg. Napier 18 Aug 21 12 45 49 Gr 2639SB0 6.0 6.0 79+ 125 38 4.1S; 81km in az. 157deg. Wanaka 18 Aug 21 12 45 13 Gr 2639SB0 6.0 6.0 79+ 125 38 4.0S; 63km in az. 157deg. Queenstown 18 Aug 21 12 47 30 Gr 2639SB0 6.0 6.0 79+ 125 37 4.2S; 80km in az. 336deg. Dunedin 18 Aug 21 12 44 53 Gr 2639SB0 6.0 6.0 79+ 125 38 4.0S; 70km in az. 337deg. Invercargill
18 Aug 29 12 47 9 Gr 109441kG5 7.7 7.2 91- 145 38 12.2N; 19km in az. 151deg. Christchurch 18 Aug 29 12 43 50 Gr 109441kG5 7.7 7.2 91- 145 36 11.8N; 56km in az. 153deg. Mt. John 18 Aug 29 12 44 59 Gr 109441kG5 7.7 7.2 91- 145 37 11.9N; 13km in az. 332deg. Timaru 18 Aug 29 12 41 56 Gr 109441kG5 7.7 7.2 91- 145 35 11.5N; 33km in az. 153deg. Wanaka 18 Aug 29 12 41 18 Gr 109441kG5 7.7 7.2 91- 145 35 11.4N; 18km in az. 154deg. Queenstown 18 Aug 31 13 50 10 Gr 110516 K0 6.9 6.4 76- 121 24 11.2N; 83km in az. 149deg. Wanaka 18 Aug 31 13 49 42 Gr 110516 K0 6.9 6.4 76- 121 24 11.1N; 71km in az. 149deg. Queenstown 18 Aug 31 13 51 35 Gr 110516 K0 6.9 6.4 76- 121 25 11.5N; 84km in az. 327deg. Dunedin 18 Aug 31 13 49 27 Gr 110516 K0 6.9 6.4 76- 121 23 11.1N; 49km in az. 329deg. Invercargill 18 Sep 4 15 58 0 Gr 78074 B1 7.4 7.2s 32- 69 12 11.8N; 29km in az. 150deg. Auckland
18 Sep 12 7 28 50 Gr 139393 F5 8.6 8.4 8+ 34 15 7.9N; 55km in az. 183deg. Nelson 18 Sep 12 7 29 2 Gr 139393 F5 8.6 8.4 8+ 34 14 7.9N; 67km in az. 2deg. Kaikoura 18 Sep 12 7 27 47 Gr 139393 F5 8.6 8.4 8+ 34 16 8.3N; 86km in az. 4deg. Greymouth 18 Sep 16 8 16 44 Gr 2441 G0 6.6 6.3 43+ 83 49 1.6N; 20km in az. 173deg. Napier 18 Sep 16 8 14 23 Gr 2441 G0 6.6 6.3 43+ 83 50 1.9N; 63km in az. 353deg. Palmerston North 18 Sep 17 8 26 10 Gr 160867 G5 8.0 7.6 53+ 94 57 1.0N; 80km in az. 171deg. Palmerston North 18 Sep 17 8 24 24 Gr 160867 G5 8.0 7.6 53+ 94 58 1.3N; 14km in az. 351deg. Wellington 18 Sep 17 8 21 6 Gr 160867 G5 8.0 7.6 53+ 94 59 1.7N; 5km in az. 173deg. Nelson 18 Sep 17 8 16 32 Gr 160867 G5 8.0 7.6 53+ 94 61 2.2N; 108km in az. 354deg. Greymouth
Date Time P Star Sp Mag Mag % Elon Sun Moon Cusp Dist. Azimuth Locality y m d h m s No D v r ill Alt Alt Angle ° 18 Sep 18 7 33 8 GrX 44520 A* 7.1 7.1 63+ 105 66 4.2N; 57km in az. 180deg. Mt. John 18 Sep 18 7 34 55 GrX 44520 A* 7.1 7.1 63+ 105 66 4.0N; 11km in az. 179deg. Timaru 18 Sep 18 7 30 4 GrX 44520 A* 7.1 7.1 63+ 105 -11 66 4.6N; 25km in az. 1deg. Wanaka 18 Sep 18 7 29 0 GrX 44520 A* 7.1 7.1 63+ 105 -10 66 4.7N; 61km in az. 2deg. Queenstown 18 Sep 26 10 52 3 Gr 192 A3 5.1 5.1 98- 163 37 23.0N; 96km in az. 153deg. Whangarei 18 Sep 26 10 52 50 Gr 192 A3 5.1 5.1 98- 163 37 23.1N; 40km in az. 332deg. Auckland 18 Oct 16 11 36 29 Gr 2829 K2 6.7 6.2v 47+ 86 17 2.7S; 99km in az. 150deg. Taupo 18 Oct 16 11 37 50 Gr 2829 K2 6.7 6.2v 47+ 86 15 2.6S; 16km in az. 150deg. Gisborne 18 Oct 16 11 37 5 Gr 2829 K2 6.7 6.2v 47+ 86 16 2.7S; 14km in az. 329deg. Napier 18 Oct 16 11 36 8 Gr 2829 K2 6.7 6.2v 47+ 86 18 2.7S; 40km in az. 329deg. Palmerston North 18 Oct 16 11 34 13 Gr 2829 K2 6.7 6.2v 47+ 86 20 2.7S; 24km in az. 328deg. Nelson
18 Oct 18 11 42 34 Gr 164100 K0 7.4 6.8 66+ 108 34 3.3S; 9km in az. 143deg. Christchurch 18 Oct 18 11 38 51 Gr 164100 K0 7.4 6.8 66+ 108 36 3.2S; 75km in az. 142deg. Mt. John 18 Oct 18 11 40 11 Gr 164100 K0 7.4 6.8 66+ 108 35 3.3S; 1km in az. 142deg. Timaru 18 Oct 18 11 36 31 Gr 164100 K0 7.4 6.8 66+ 108 37 3.2S; 76km in az. 142deg. Wanaka 18 Oct 18 11 35 42 Gr 164100 K0 7.4 6.8 66+ 108 38 3.2S; 71km in az. 142deg. Queenstown 18 Oct 18 11 38 54 Gr 164100 K0 7.4 6.8 66+ 108 36 3.2S; 92km in az. 322deg. Dunedin 18 Oct 18 11 35 13 Gr 164100 K0 7.4 6.8 66+ 108 38 3.2S; 37km in az. 322deg. Invercargill 18 Dec 12 9 35 7 Gr 3105 K0 6.1 5.5S 22+ 56 18 3.4S; 59km in az. 329deg. Whangarei 18 Dec 17 10 46 2 Gr 170 K4 6.0 5.2S 69+ 112 33 3.9S; 58km in az. 148deg. Auckland 18 Dec 17 10 47 7 Gr 170 K4 6.0 5.2S 69+ 112 32 3.8S; 48km in az. 328deg. Hamilton
