AURORA and SOLAR SECTION
ROYAL ASTRONOMICAL SOCIETY of NEW ZEALAND
REPORTS OF AURORA AUSTRALIS SEEN DURING
2002 APRIL

All dates and times UTC

Apr 6 09:00 to 09:30 Bright white glow SW and W.
                (S46.2 E169.6) - Clinton-Balclutha highway, New Zealand

Apr 12 07:30 Bright, light-green glow SSE to SW to 40 elev.
            10:00 Brightness gradually decreased towards this time.
                (S45.1 E171.0) - Oamaru, North Otago, New Zealand

Apr 13 10:00 Glow az 160 to 220 to 10 elev. IBC 1 (similar to Centaurus region of the Milky Way).
            10:05 Glow lower; only 5 elev.
            10:10 Brighter at az 190 at horizon; IBC 2.
            10:20 Much of glow now IBC 2 and now back to elev 10. Ceased observing.
                (S46.4 E168.3) - Otatara, Invercargill, New Zealand
                White glow IBC 2.
                (S46.9 E168.1) - Horseshoe Bay, Stewart Is, New Zealand
            11:30 Faint glow SSE to SSW. Line seen in spectroscope.
            13:30 Low arc SE to SW, IBC 2.
            14:45 to 15:00 Glow still SE to SW to 15 elev, IBC 2.
                (S45.8 E169.3) - Edievale, West Otago, New Zealand
            approx. 18:00 White glow seen through cloud gaps.
                (S46.4 E169.8) - Otekura, South Otago, New Zealand

Apr 17 13:30 to 14:30 Bright yellow-green homogeneous glow along horizon SE to SW to about 10 elev and large vivid ruby red, to dull red above, patches between 10 and 45 elev. The display subsided a little until 14:00 (local midnight) when it re-intensified although did not achieve quite the same extent nor the intense ruby colour again. By 14:20 only the yellow-green glow along the horizon was left. Momentary hints of broad whitish rays up to about 40 in SSE to S at 13:45 and again at 14:10.
                (S41.5 E147.2) - Norwood, Tasmania, Australia
            14:40 Widespread glow SE to SW IBC 2; brightest in SW. Spectroscope showed line to about 45 elev in S.
            15:00 Similar. Glow extends around to W.
            15:30 Similar. Brightest SW to W.
                (S45.8 E169.3) - Edievale, West Otago, New Zealand
            16:00 Clouded out and raining!
                (S41.5 E147.2) - Norwood, Tasmania, Australia
                Aurora with beams radiating upwards gradually fading until undetectable at elev 35 to 40. There was an area of faint pink betweeen the beams but was essentialy whitish.
            16:10 Beams had faded considerably but there was slight sky glow to the south silhouetting some low cloud.
            16:15 Little sign of any glow although cloud bank in south was getting higher. Magnetometer showed some considerable deviations during the night and during the following hour.
                (S43.5 E172.1) - Darfield, Canterbury, New Zealand
            Throughout night. Saw some auroral glow through gaps in cloud bank to the south.
                (S44.0 E170.5) - Tekapo, Canterbury, New Zealand

Apr 18 approx. 07:45 Glow centred on S; reddish to the SSW with one or two mainly green rays up to about 20 elev.
                (S41.1 E175.6) - Ahiaruhe, Wairarapa, New Zealand
            08:10 Glow IBC 3.
            08:50 Glow slightly fainter and small in area but within 90 seconds grew in extent reaching 45 elev.
                (S46.9 E168.1) - Stewart Is, New Zealand
            09:00 Highest activity.
                (S41.1 E175.6) - Ahiaruhe, Wairarapa, New Zealand
            09:30 to 11:10 Glow that did not seem to change during this time.
                (S40.5 E175.7) - Hamua, Wairarapa, New Zealand
            10:00 to 10:45 White glow IBC 3.
                (S46.9 E168.1) - Horseshoe Bay, Stewart Is, New Zealand
            10:08 to 10:28 Pale green homogeneous glow, az 150 to 250, elev 20.
                (S46.4 E168.3) - Otatara, Invercargill, New Zealand
            11:00 Seemed to have died away by this time.
                (S41.1 E175.6) - Ahiaruhe, Wairarapa, New Zealand
            11:45 Orangy-reddish patch about 20 square near Achernar.
                (S41.3 E174.8) - Wellington, New Zealand
            12:00 Brief display of rays in SW to 20 elev.
                (S42.3 E171.1) - Greymouth, New Zealand
            12:06 White ray about 3 wide, to elev 20, again by Achernar lasting about 2 minutes before breaking up into same dullish red patch.
            12:13 Red patch intensified.
            12:45 Another broad ray - murky reddish in colour - breaking up almost immediately.
                (S41.3 E174.8) - Wellington, New Zealand
            12:50 White ray in SSE to 30 elev. Some slight westward motion.
                (S46.5 E168.4) - Invercargill, New Zealand
            13:30 Green glow visible in SW through cloud gaps.
            13:40 Suspect auroral glow shining through thin cloud. Fluctuating in brightness.
            14:00 Glow almost disappeared.
                (S46.6 E168.3) - Bluff, New Zealand

Apr 19 11:15 to 20:00 intermittently Whitish glow SE to SW to elev 15 to 20. IBC 2. Momentary appearance of faint broad rays at about 12:00. Cloud gradually building during this time; filling southern sky last.
                (S41.5 E147.2) - Norwood, Tasmania, Australia
            11:20 Strong glow silhouetting clouds.
                (S40.3 E175.4) - Glen Oroua, Manawatu, New Zealand
            11:30 Arc SE to SW to 20 elev. IBC 2.
                (S45.8 E169.3) - Edievale, West Otago, New Zealand
            12:00 to 13:10 Rays appeared in the SW; some had an obvious pink/red tinge and reached to Magellanic clouds. This initial burst lasted about 10 minutes. More weak rays came and went over the next 70 minutes before the activity died down.
                (S40.3 E175.4) - Glen Oroua, Manawatu, New Zealand
            13:00 to 14:00 Initially an arc az 140 to 220 to 5 elev with a strong ray at az 140 reaching to 12 elev. The arc changed into a glow, with some weak curtains, then had patches flaming off the glow to about 10 elev.
                (S46.8 E176.6) - Codfish Island, Stewart Island, New Zealand
            14:00 to 15:20 Green rays SE to SW extending at times to 50 elev. Flaming with approx periods of to 1 second.
            15:42 Aurora livened up after it had subsided somewhat. Pulsating rays jumping all about Stewart Island with glow spreading about 90 in azimuth.
            16:10 Big shafts of light bursting into sky from horizon.
            16:37 Aurora has died down a bit but still flashing and jumping on the horizon.
                (S46.6 E168.3) - Bluff, New Zealand
            16:40 Aurora still going. Rays and pulses of light.
                (S46.3 E168.0) - Riverton, Southland, New Zealand
            16:45 Vivid silver and green glow between clouds up to about 45 elev.
                (S46.4 E169.8) - Otekura, South Otago, New Zealand
            17:40 Sudden burst of aurora. Several big shafts of light burst vertically into the sky. Lasted about 5 minutes.
            17:55 Aurora has died down. Dawn breaking.
                (S46.6 E168.3) - Bluff, New Zealand

Apr 20 07:15 Very faint ray in SW under Achernar lasting for a few minutes.
                (S40.3 E175.4) - Glen Oroua, Manawatu, New Zealand
            approx. 10:00 Wide bright green patch in S and SE.
                (S46.4 E169.8) - Otekura, South Otago, New Zealand
            14:45 to 15:00 Mostly overcast but glow SE to SW, IBC 2, brightest in SW. Strong line in spectroscope to about 15 elev.
            17:44 Bright along horizon.
                (S45.8 E169.3) - Edievale, West Otago, New Zealand

Apr 23 approx 10:00 Bright green glow seen in cloud gaps in SE and S to elev. 70. Moon behind cloud.
                (S46.4 E169.8) - Otekura, South Otago, New Zealand